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Cat
- Kat Von D (* 1982), American tattoo artist, television actress and author
- Kat, Hidde Dirks (1747-1824), Dutch captain
- Kat, Wam (* 1956), Dutch cook and author
Kata
- Kata, Kéké (* 1951), Ivorian politician
- Katabi, Dina (* 1971), Syrian computer scientist
- Katabira, Tomoyuki (* 1993), Japanese soccer player
- Katafuchi, Kōichirō (* 1975), Japanese football player
- Katagami-Theis, Masako (* 1948), Japanese entrepreneur and operator of old people's homes and care facilities
- Katagas, Anthony (* 1971), American film producer with Greek roots
- Katagiri, Atsushi (* 1983), Japanese football player
- Katagiri, Hiromi (* 1973), Japanese soccer player
- Katainen, Elsi (* 1966), Finnish farmer, teacher and politician, member of the Reichstag, MEP
- Katainen, Jyrki (* 1971), Finnish politician, member of the Reichstag
- Kataishi, Kanetoshi , Japanese badminton player
- Kataja, Erkki (1924–1969), Finnish athlete
- Katajew, Iwan Iwanowitsch (1902–1937), Russian prose writer
- Katajew, Evgeni Petrovich (1903–1942), Russian-Soviet humorous writer
- Katajew, Valentin Petrovich (1897–1986), Soviet playwright and novelist
- Kataka Luvete, Janvier (* 1947), Congolese clergyman, Bishop of Wamba
- Katali, Isak (* 1958), Namibian politician and former minister
- Katali, Loy (* 1975), Ugandan politician (NRM)
- Kataliko, Emmanuel (1932–2000), Congolese clergyman and Roman Catholic Archbishop of Bukavu
- Katalinić, Ivan (* 1957), Croatian football player and coach
- Katalinski, Josip (1948–2011), Yugoslav football player
- Katamanda, Miriam (* 1991), Zambian soccer player
- Katambo, Micheal Zondani Jay (* 1969), Zambian politician
- Katan, Yaniv (* 1981), Israeli soccer player
- Katana, Randy (* 1965), Dutch DJ and producer
- Katanandow, Sergei Leonidowitsch (* 1955), Russian politician and head of a federal subject in Russia
- Katanec, Srečko (* 1963), Yugoslav and Slovenian football player and coach
- Katanga, Germain (* 1978), Congolese leader of the Forces de Résistance Patriotique d'Ituri (FRPI)
- Katano, Hiromichi (* 1982), Japanese soccer player
- Katanosaka, Tomohiro (* 1971), Japanese football player
- Katanow, Nikolai Fjodorowitsch (1862–1922), Russian ethnographer, linguist and Turkologist of Sagai-Turkish origin
- Kataoka, Kenkichi (1844–1903), Japanese samurai and politician
- Kataoka, Kōji (* 1977), Japanese football player
- Kataoka, Sō (* 1992), Japanese football player
- Kataoka, Tamako (1905–2008), Japanese painter
- Kataoka, Teppei (1894–1944), Japanese writer
- Kataoka, Yōsuke (* 1982), Japanese football player
- Katapodis, Nikolaos (* 1925), Greek diplomat
- Katardžiev, Ivan (1926–2018), Yugoslav and Macedonian historian and library director
- Katari, Tomás († 1781), leader of an Indian uprising in Peru in 1780
- Kataria, Nisha (* 1986), American singer
- Katarina, Anna (* 1960), Swiss actress
- Katarina, Olivera (* 1940), Serbian actress
- Katarzynski, Raymond (1935–2015), French musician (trombone) and music teacher
- Katase, Kazuo (* 1947), Japanese artist
- Katatni, Saad al- (* 1952), Egyptian politician
- Katavolos, William (* 1924), Greek-American architect, urban planner and furniture designer
- Katāy Dōn Sasōrit (1904–1959), Laotian politician in the independence movement and minister in several cabinets (until 1958)
- Katayama Tetsu (1887–1978), Japanese Prime Minister
- Katayama, Eiichi (* 1991), Japanese soccer player
- Katayama, Hiroaki (1951-2018), Japanese jazz musician
- Katayama, Hiroko (1878–1957), Japanese poet and translator
- Katayama, Hiroshi (born 1940), Japanese football player
- Katayama, Kyōichi (* 1959), Japanese writer
- Katayama, Masao (1877-1961) Japanese physical chemist
- Katayama, Masato (* 1984), Japanese soccer player
- Katayama, Nampū (1887–1980), Japanese painter
- Katayama, Raibu (* 1995), Japanese snowboarder
- Katayama, Sen (1859-1933), Japanese Marxist and journalist
- Katayama, Shingo (* 1973), Japanese golf player
- Katayama, Shōsuke (born 1983), Japanese football player
- Katayama, Takazumi (* 1951), Japanese motorcycle racer
- Katayama, Takuya (* 1972), Japanese badminton player
- Katayama, Tōkuma (1854–1917), Japanese architect
- Katayama, Toranosuke (* 1935), Japanese politician
- Katayama, Toshikazu (* 1913), Japanese figure skater
- Katayama, Ukyō (* 1963), Japanese Formula 1 racing driver
- Katayama, Yoshihiro (* 1951), Japanese politician
- Katayama, Yoshimi (1940-2016), Japanese motorcycle and car racer
Catc
- Katch, Kurt (1893–1958), Russian-Polish-American actor
- Katche, Maksimas (1879–1933), German-Baltic Lieutenant General and participant in the Lithuanian struggle for independence (1918–1920)
- Katché, Manu (* 1958), French drummer
- Katchen, Julius (1926–1969), American pianist
- Katcher, Leo (1911–1991), American journalist, screenwriter, and writer
- Katchor, Ben (* 1951), American comic artist
Kate
- Kate, Anissa (* 1987), French porn actress with Arab roots
- Káté, Gyula (* 1982), Hungarian boxer
- Kate, Lauren (* 1981), American author
- Kate, Marti ten (* 1958), Dutch long-distance runner
- Kateab, Waad al- (* 1991), Syrian documentary filmmaker
- Kateb, Reda (* 1977), French actor
- Kateb, Yacine (1929–1989), Algerian writer
- Kategaya, Eriya (1945–2013), Ugandan politician
- Kateka, James L. (* 1945), Tanzanian lawyer, judge at the International Tribunal for the Sea
- Kätelhön, Hermann (1884–1940), German painter, draftsman and composer
- Katemann, Harald (* 1972), German soccer player and soccer coach
- Katemann, Jens (* 1974), German motor journalist and editor-in-chief of auto motor und sport
- Katende, Kennedy (* 1985), Swedish boxer
- Katenhusen, Ines (* 1966), German historian, author and editor on communal science and European integration
- Kater, Bernd (* 1962), German basketball player
- Kater, Fritz (1861–1945), German anarcho-syndicalist
- Kater, Helmut (1927–2012), German politician (SPD), Member of the Bundestag, MEP
- Kater, Henry (1777-1835) British physicist
- Käter, Jan (* 1937), German motorcycle track racer
- Kater, Klaus (* 1948), German handball player
- Kater, Kristian (* 1983), German business economist and politician (SPD)
- Kater, Michael H. (* 1937), Canadian historian
- Kater, Peter (* 1958), American New Age musician
- Kater, Thomas (* 1966), German philosopher
- Kater, Toni (* 1977), German singer and musician
- Katerbau, Dagmar (* 1938), German table tennis player and volleyball trainer
- Katergiannakis, Fanis (* 1974), Greek football player
- Katerine, Philippe (* 1968), French actor and singer
- Katerkamp, Johann Theodor (1764–1834), German Catholic theologian and church historian
- Kates, Bernard (1922-2010), American film actor
- Kates, Brian A. (* 1972), American film editor
- Kates, Robert W. (1929–2018), American geographer and environmental scientist
- Katesigwa, Banuelia (* 1977), Tanzanian marathon runner
- Katětov, Miroslav (1918–1995), Czech mathematician, psychologist and chess player
Cath
- Kath, Florian (* 1994), German soccer player
- Kath, Hans-Hermann († 1990), German politician
- Kath, Janet (* 1964), Austrian manager
- Kath, Joachim (* 1941), German communication scientist and non-fiction author
- Kath, Katherine (1920–2012), French theater and film actress
- Kath, Lydia (1906–1978), German writer
- Kath, Robert (* 1985), German racing car driver
- Kath, Siegfried (1936–2008), German entrepreneur and art dealer
- Kath, Terry (1946–1978), American rock musician (guitarist)
- Kathan, Bernhard (* 1953), Austrian writer
- Kathan, Klaus (* 1977), German ice hockey player
- Kathan, Peter junior (* 1982), German ice hockey player
- Kathan, Peter senior (* 1949), German ice hockey player and coach
- Katharina (1253–1257), English king's daughter
- Katharina Belgica of Orange-Nassau (1578–1648), Princess of Orange-Nassau, by marriage to Countess Hanau-Münzenberg
- Katharina Charlotte von Pfalz-Zweibrücken (1615–1651), Countess Palatine and Duchess of Neuburg
- Katharina Elisabeth von Hanau (1607–1647), Countess of Hanau-Münzenberg-Schwarzenfels and, by marriage, Countess of Isenburg-Birstein
- Katharina Förtsch von Thurnau , German abbess
- Catherine I (1684–1727), Russian tsarina
- Catherine II (1729–1796), Tsarina of Russia
- Katharina Michaela of Spain (1567–1597), Princess of Spain and Duchess of Savoy
- Katharina Opalińska (1680–1747), Queen of Poland and Duchess of Lorraine
- Katharina Pawlowna (1788–1819), Queen of Württemberg
- Katharina Renata of Austria (1576–1595), Archduchess of Austria
- Katharina Rieter († 1410), German abbess
- Catherine of Alexandria , early Christian virgin and martyr, saint
- Catherine of Aragon (1485–1536), first wife of Henry VIII, Queen of England
- Catherine of Bavaria (1360–1402), Duchess of Jülich-Geldern
- Catherine of Bologna (1413–1463), Italian painter, clarissess and founder of a monastery, saint
- Catherine of Braganza (1638–1705), wife of King Charles II of England.
- Katharina von Brandenburg (1602–1644), Princess of Transylvania, Duchess of Saxony-Lauenburg
- Katharina von Brandenburg-Küstrin (1549–1602), daughter of Margrave Johann von Küstrin
- Katharina von Braunschweig-Lüneburg (1395–1442), Electress of Saxony
- Katharina von Braunschweig-Wolfenbüttel (1488–1563), Princess of Braunschweig-Wolfenbüttel, by marriage Duchess of Saxony-Lauenburg
- Katharina von Braunschweig-Wolfenbüttel (1518–1574), Margravine of Brandenburg-Küstrin
- Catherine of Burgundy (1378–1425), wife of Duke Leopold IV of Austria; Ruler in the Habsburg foothills; Duchess of Burgundy
- Katharina von der Pfalz (1499–1526), Abbess of Neuburg am Neckar
- Katharina von Gebersweiler , medieval mystic, author of a sister's book called Vitae Sororum
- Katharina von Geldern († 1497), regent of Geldern
- Catherine of Genoa (1447–1510), Italian clergyman and saint
- Catherine of Greece (1913–2007), Greek princess
- Katharina von Habsburg († 1282), wife of Duke Otto III. from Lower Bavaria
- Katharina von Habsburg (1295–1323), Duchess of Calabria
- Katharina von Habsburg , wife of Enguerrand VI. de Coucy
- Katharina von Hanau (1408–1460), wife 1st of Count Thomas II von Rieneck; 2. of Count Wilhelm II of Henneberg-Schleusingen
- Katharina von Henneberg († 1397), by marriage Margravine von Meißen, Landgravine of Thuringia
- Katharina von Holstein-Beck (1750–1811), daughter of Peter August Herzog von Holstein-Beck
- Catherine of Castile (1507–1578), Archduchess of Austria and Princess of Castile
- Katharina von Kotzau , Abbess of the Poor Clare Monastery
- Catherine of Lancaster († 1418), Queen of Castile
- Catherine of Lorraine (1407–1439), Margravine of Baden
- Catherine of Luxembourg-Saint-Pol , Duchess of Brittany
- Catherine of Luxembourg (1342-1395), Duchess of Austria (1358-1365); Margravine of Brandenburg (1366–1379)
- Katharina von Nassau-Beilstein († 1459), Countess of Hanau
- Catherine of Navarre (1470–1517), Queen of Navarre
- Katharina von Nürnberg († 1409), abbess of the Poor Clare Monastery
- Catherine of Austria († 1493), Margravine of Baden
- Catherine of Austria († 1572), by marriage Queen of Poland and Duchess of Mantua
- Katharina von Pfalz-Simmern (1510–1572), abbess in the Kumbd monastery
- Katharina von Pommern-Stolp († 1426), wife of Count Palatine Johann of Pfalz-Neumarkt
- Katharina von Racconigi (1486–1547), Italian virgin and terziarin, blessed
- Catherine of Saxony (1421–1476), Electress of Brandenburg
- Catherine of Saxony (1468–1524), second wife of Archduke Siegmund of Tyrol
- Katharina von Sachsen-Lauenburg († 1450), mistress of Werle, duchess of Mecklenburg, regent (1422–1436)
- Katharina von Sachsen-Lauenburg (1513–1535), Queen of Sweden
- Catherine of Savoy († 1336), wife of Duke Leopold I of Austria
- Katharina von Schaumberg († 1411), German Cistercian abbess
- Katharina von Schwarzburg-Blankenburg († 1514), wife of Count Reinhard IV. Von Hanau-Münzenberg
- Catherine of Sweden († 1381), daughter of Birgittas of Sweden, saint, virgin, abbess of Vadstena
- Catherine of Siena († 1380), Italian mystic, doctor of the church and saint
- Katharina von Tecklenburg (1517–1560), abbess of the Essen monastery
- Katharina von Württemberg (1783–1835), Queen of Westphalia
- Katharina zu Mecklenburg (1487–1561), Duchess of Saxony
- Katharine, Duchess of Kent (* 1933), British noblewoman, member of the British royal family and wife of Prince Edward, 2nd Duke of Kent
- Kathariner, Ludwig (1868–1920), German zoologist
- Kathe, Heinz (1940–2012), German historian
- Kathe, Johannes (1880–1965), German hygienist and bacteriologist
- Katheder, Antonia (* 1993), German Taekwondo, participant in the 2010 Summer Youth Olympic Games
- Kathen, Charlotte von (1777–1850), landlady on Rügen, Salonnière
- Kathen, Hugo von (1855–1932), Prussian infantry general in the First World War
- Kather, Arthur (1883–1957), Catholic clergyman, most recently capitular vicar of Warmia
- Kather, Linus (1893–1983), German politician (CDU, 1954 GB / BHE, NPD), Member of the Bundestag
- Käther, Nadja (* 1988), German long jumper
- Kather, Regine (* 1955), German philosopher, professor of philosophy at the University of Freiburg
- Kather, Roland (* 1949), German soldier, lieutenant general in the army of the Bundeswehr
- Katherina von Baden , Margravine of Baden
- Katherine of York (1479–1527), English princess of the House of York
- Kathīr, Ibn († 1373), Arab historian
- Kathke, Clemens (1938–2008), Roman Catholic theologian
- Kathog Rigdzin Chenpo Tshewang Norbu (1698–1755), Nyingmapa clergyman, author of a Gungthang royal genealogy
- Kathol, Wilhelm (1854–1944), German technician and chemist
- Kathol, Wilhelm (1878–1951), German architect and construction clerk
- Katholm, Rasmus (* 1981), Danish football player
- Kathrada, Ahmed (1929–2017), South African politician
- Kathrein, Anton (* 1984), German engineer and entrepreneur
- Kathrein, Anton junior (1951–2012), German entrepreneur in antenna technology
- Kathrein, Anton senior (1888–1972), German entrepreneur in antenna technology
- Kathrein, Karin (* 1938), Austrian journalist, publicist, cultural critic and theater scholar
- Kathrein, Satyam S. , German therapist
- Kathrein, Theodor von (1842–1916), Austrian politician and governor of Tyrol
- Kathrein, Werner (* 1953), German clergyman, cathedral dean and professor at the theological faculty in Fulda
- Kathreiner, Franz (1794–1866), German banker
- Kathstede, Gregor (* 1963), German local politician, Lord Mayor of Krefeld
- Kathurima, Harry Mutuma (* 1952), Kenyan diplomat
Kati
- Katib Çelebi (1609–1657), Ottoman scholar
- Katic, Andree (* 1984), German television actor and model
- Katić, Branka (* 1970), Serbian actress
- Katic, Mark (* 1989), Croatian-Canadian ice hockey player
- Katić, Nikola (* 1996), Croatian football player
- Katić, Raško (* 1980), Serbian basketball player
- Katić, Stana (* 1978), Canadian-American actress
- Katičić, Radoslav (1930–2019), Croatian linguist and cultural historian
- Katidis, Giorgos (* 1993), Greek football player
- Katie, Byron (born 1942), American life coach
- Katika (* 1977), Italian singer
- Katilius, Povilas (* 1935), Lithuanian politician, member of the Seimas
- Katilius, Raimundas (1947–2000), Lithuanian music teacher, violinist and professor
- Katims, Milton (1909–2006), American conductor and violinist
- Katina, Jelena Sergejewna (* 1984), Russian singer
- Katinari, Maria , Greek actress and musician
- Katinaris, Antonis (1931–1999), Greek composer and musician
- Katinas, Alvydas (* 1960), Lithuanian politician
- Katinger, Hermann (* 1941), Austrian microbiologist
- Katinovasov, Rasul (* 1969), Soviet, Russian and Uzbek wrestler
- Katinovasov, Saygid (* 1969), Soviet, Russian and Uzbek wrestler
- Katipoğlu, Büşra (* 1992), Turkish judoka
- Katitschew, Evgeny Alexejewitsch (* 1986), Russian ice hockey player
Katj
- Katjavivi, Peter (* 1941), Namibian political scientist, politician and diplomat
- Katjiuongua, Moses (1942–2011), Namibian politician
Catk
- Katkawez, Aljaksej (* 1998), Belarusian javelin thrower
- Katkevičius, Vladas (1937–2009), Lithuanian engineer and electrical mechanic, professor and politician
- Katko, John (* 1962), American politician
- Katkow, Fyodor Grigoryevich (1901–1992), Soviet-Russian Lieutenant General and Hero of the Soviet Union
- Katkow, Michail Nikiforowitsch (1818–1887), Russian publicist
- Katkus, Donatas (* 1942), Lithuanian musician, contralto, conductor and musicologist
- Katkus, Juozapas Algirdas (1936–2011), Lithuanian politician
- Katkus, Valdemaras (* 1958), Lithuanian politician, member of the Seimas and diplomat
Catl
- Katlaps, Ulvis (1968–2013), Latvian ice hockey player and coach
- Katleman, Michael (* 1950), American film and television director and producer
- Katlewicz, Jerzy (1927–2015), Polish conductor and music teacher
- Katluhn, Franz (1865–1942), German Imperial Judge
Catn
- Katnik, Lukas (* 1989), Austrian soccer player
- Katnikowa, Jekaterina Nikolajewna (* 1994), Russian luge rider
- Katnosa, Anita Olsen (* 1973), Norwegian cross-country skier
Kato
- Kato, Aki (* 1966), Japanese choreographer for classical ballet
- Katō, Asami (* 1990), Japanese long-distance runner
- Katō, Ayuko (* 1979), Japanese politician
- Katō, Chikage (1735-1808), Japanese poet and literary scholar
- Katō, Daijirō (1976-2003), Japanese motorcycle racer
- Katō, Daishi (* 1983), Japanese football player
- Katō, Daisuke (1911-1975), Japanese actor
- Kato, David (1964-2011), Ugandan gay activist
- Katō, Emiri (* 1983), Japanese voice actress (seiyū) and singer
- Katō, Gō (1938-2018), Japanese actor
- Kato, Hideki (* 1962), Japanese musician and composer
- Katō, Hidenori (* 1981), Japanese football player
- Katō, Hiroharu (1870–1939), Japanese naval officer
- Katō, Hiroki (* 1968), Japanese racing car driver
- Katō, Hiroki (* 1986), Japanese football player
- Kato, Hiroshi (* 1951), Japanese football coach
- Katō, Hiroyuki (1836–1916), Japanese scholar and politician
- Katō, Hisashi (* 1956), Japanese football player and coach
- Katō, Jōji (* 1985), Japanese speed skater
- Katō, Jun'ya (* 1994), Japanese football player
- Katō, Katsunobu (* 1955), Japanese politician
- Katō, Kazuya (* 1952), Japanese mathematician
- Katō, Kento (* 1995), Japanese football player
- Katō, Kiyomasa (1561-1611), Japanese warlord
- Katō, Kiyomi (* 1948), Japanese wrestler
- Katō, Kōhei (* 1989), Japanese football player
- Katō, Kōichi (1939-2016), Japanese politician
- Katō, Kōken (* 1989), Japanese football player
- Katō, Kunio (* 1977), Japanese animator
- Katō, Masaaki (* 1958), Japanese football player
- Katō, Masao (1947-2004), Japanese Go player
- Katō, Masaru (* 1991), Japanese football player
- Katō, Masaya (born 1963), Japanese actor
- Katō, Miliyah (* 1988), Japanese pop singer
- Katō, Mitsuo (* 1953), Japanese football player
- Katō, Mitsuyoshi (* 1942), Japanese mathematician
- Katō, Miyu (* 1994), Japanese tennis player
- Kato, Miyu (* 1999), Japanese table tennis player
- Kato, Moriyuki (1934-2020), Japanese politician
- Katō, Mutsuki (born 1997), Japanese football player
- Katō, Nobuhiro (* 1984), Japanese football player
- Katō, Nobuyuki (* 1920), Japanese football player
- Katō, Nozomu (* 1969), Japanese football player
- Katō, Ryō (* 1978), Japanese artist and painter
- Katō, Ryōhei (* 1993), Japanese gymnast
- Katō, Ryūji (* 1969), Japanese football player
- Katō, Sawao (* 1946), Japanese artistic gymnast
- Kato, Sean , American biathlete
- Katō, Seizō (1927-2014), Japanese voice actor
- Katō, Shin'ichi (* 1958), Japanese jazz musician (double bass)
- Katō, Shin'ya (* 1980), Japanese football player
- Katō, Shizue (1897-2001), Japanese feminist
- Katō, Shōji , Japanese sociologist and university professor
- Katō, Shūichi (1919–2008), Japanese physician and literary scholar
- Katō, Shūson (1905-1993), Japanese haiku poet, literary scholar
- Katō, Taihei (* 1984), Japanese Nordic combined athlete
- Katō, Taiki (* 1993), Japanese football player
- Katō, Takaaki (1860–1926), Japanese politician and statesman; 24th Prime Minister of Japan
- Katō, Takayuki (* 1955), Japanese jazz musician (guitar)
- Katō, Takehiro (* 1974), Japanese football player
- Katō, Takeshi (1942–1982), Japanese artistic gymnast
- Katō, Tomoe (* 1978), Japanese soccer player
- Katō, Tomosaburō (1861–1923), 21st Prime Minister of Japan
- Katō, Toshikazu (* 1981), Japanese football player
- Kato, Tosio (1917–1999) Japanese mathematician
- Katō, Yasuaki (* 1976), Japanese football player
- Katō, Yoshio (* 1957), Japanese football player
- Katō, Yoshiyuki (born 1964), Japanese football player
- Katō, Yūki (born 1997), Japanese football player
- Kato-Mailath-Pokorny, Sonja (* 1972), Austrian politician (SPÖ), member of the state parliament
- Katoatau, David (* 1984), Kiribati weightlifter
- Katoen, Joost-Pieter (* 1964), Dutch theoretical computer scientist
- Katok, Anatole (1944-2018), American mathematician
- Katok, Svetlana (* 1947), Russian-American mathematician
- Katolik, Elżbieta (1949–1983), Polish middle-distance runner
- Katona, Esther (* 1982), German basketball player
- Katona, George (1901–1981), American psychologist and economist of Austro-Hungarian origin
- Katona, Gyula OH (* 1941), Hungarian mathematician
- Katona, Imre (1921–2005), Hungarian communist politician, Member of Parliament
- Katona, István (* 1928), Roman Catholic bishop
- Katona, Jacqui (* 1966), Aboriginal political leader
- Katona, József (1791–1830), Hungarian poet
- Katona, Kerry (* 1980), British singer, actress, author, columnist, television presenter and founding member of the girl group Atomic Kitten
- Katongo, Chris (* 1982), Zambian soccer player
- Katongo, Felix (* 1984), Zambian soccer player
- Katonová, Monika (* 1989), Slovak soccer player
- Katori, Hidetoshi (* 1964), Japanese physicist
- Katori, Hotsuma (1874–1954) Japanese artisan
- Katori, Masahiko (1899–1988) Japanese artisan
- Katorsa, Israel (* 1968), Israeli comedian, actor and screenwriter
- Katoto, Marie-Antoinette (* 1998), French soccer player
- Katow, Paul (1949–2008), Luxembourgish author
Katr
- Katrancı, Cengaver († 1972), Turkish wall victim
- Katrantzi, Tatiani (* 1974), German actress
- Katrantzou, Mary (* 1983), Greek fashion designer
- Katravas, N. , Greek sport swimmer
- Katrenko, Alexei Alexandrovich (* 1985), Russian summer biathlete
- Katri Helena (* 1945), Finnish pop singer
- Katrín Ásbjörnsdóttir (* 1992), Icelandic football player
- Katrín Atladóttir (* 1980), Icelandic badminton player
- Katrín Jakobsdóttir (* 1976), Icelandic politician (left-green movement)
- Katrín Jónsdóttir (* 1977), Icelandic football player
- Katrín Júlíusdóttir (* 1974), Icelandic politician
- Katrín Ómarsdóttir (* 1987), Icelandic football player
- Katritzky, Alan (1928-2014) British-American chemist
- Katriuk, Wladimir (1921–2015), alleged war criminal in World War II
- Katroungalos, Giorgos (* 1963), Greek lawyer, university professor and politician
- Katrozan, Thomas (* 1980), German pop singer
- Katrych, Kyrylo (* 1984), Ukrainian ice hockey player
Kats
- Kats, Anton (* 1983), Ukrainian visual artist, musician and dancer
- Kats-Chernin, Elena (* 1957), Uzbek-Australian composer
- Katsaitis, Eleftherios (1929–2012), Greek bishop
- Katsanevas, Theodoros (* 1947), Greek economist and politician
- Katsaris, Cyprien (* 1951), French pianist and composer of Cypriot descent
- Katsaros, Jorgos (* 1972), German magician and moderator
- Katsavakis, Nikos (* 1979), Greek football player
- Katsch, Christoph von (1665–1729), Prussian Minister of Justice
- Katsch, Gerhardt (1887–1961), German physician
- Katsch, Hermann (1853–1924), German painter
- Katsch, Matthias (* 1963), German activist for victims of sexual violence
- Katschalin, Gavriil Dmitrijewitsch (1911–1995), Soviet football player and coach
- Katschalow, Eugene (* 1981), Ukrainian-American poker player
- Katschalow, Nikolai Nikolajewitsch (1883–1961), Russian chemist and university professor
- Katschalow, Nikolai Nikolajewitsch the Elder (1852–1909), Russian officer, electrical engineer and university professor
- Katschanawa, Natallja (* 1960), Belarusian politician
- Katschanow, Roman Abelewitsch (1921–1993), Russian animator, screenwriter and director
- Katschanowa, Darja Dmitrijewna (* 1997), Russian speed skater
- Katschanowski, Alexander Jurjewitsch (* 1984), Russian biathlete
- Kacharava, Nika (* 1994), Georgian football player
- Katschasnuni, Howhannes (1867–1938), Armenian Prime Minister
- Katschen, Albert , Dominican, auxiliary bishop in the diocese of Cammin
- Katschenka, Anna (1905–1980), Austrian child nurse and euthanasia participant
- Katscher, Hedwig (1898–1988), Austrian poet
- Katscher, Leopold (1853–1939), pacifist, writer, journalist
- Katscher, Robert (1894–1942), Austrian composer, songwriter and film composer
- Katscher, Rudolf (1904–1994), Austrian screenwriter and film director
- Katschmasow, Alibek Muratowitsch (* 2002), Russian tennis player
- Katschner, Wolfgang (* 1961), German lutenist and conductor
- Katschnig, Heinz (* 1942), Austrian psychiatrist and university professor
- Katschnig-Fasch, Elisabeth (1947–2012), Austrian folklorist and cultural anthropologist
- Katschthaler, Hans (1933–2012), Austrian politician (ÖVP), governor of Salzburg
- Katschthaler, Johannes Baptist (1832–1914), Austrian clergyman, Archbishop of Salzburg and politician, member of the state parliament
- Katschujewskaja, Natalja Alexandrovna (1922–1942), Soviet medical instructor
- Katschur, Jana (* 1997), Ukrainian sprinter
- Katseli, Louka (* 1952), Greek politician and economist
- Katsenelenbogen, Eyran (* 1965), Israeli pianist
- Katsich, Thomas (1919–2004), Austrian lawyer and politician (ÖVP), member of the state parliament
- Katsidis, Michael (* 1980), Australian boxer
- Katsifaras, Georgios (1935–2012), Greek politician
- Katsigiannis, Nikolas (* 1982), German handball goalkeeper
- Katsikaris, Fotis (* 1967), Greek basketball coach and player
- Katsimbalis, Giorgos K. (1899–1978), Greek intellectual, literary critic, neo-Greekist and literary translator
- Katsimis, Stamatis (* 1982), Greek racing driver
- Katsina-Alu, Aloysius Iyorgyer (1941–2018), Nigerian judge
- Katsivelis, Dimitrios (* 1991), Greek basketball player
- Kątski, Antoni (1817–1889), Polish piano virtuoso and composer
- Kątski, Apolinary (1825–1879), Polish violinist, composer and teacher
- Katsonis, Lambros (1752–1804), Greek freedom fighter and admiral
- Katsotas, Pausanias (1896–1991), Greek army officer and politician
- Katsoulis, Sarah (* 1984), Australian swimmer
- Katsouranis, Konstantinos (* 1979), Greek football player
- Katsouris, Bartholomaios (1928–2014), Greek clergyman, Greek Orthodox bishop
- Katsu Aki (* 1961), Japanese mangaka
- Katsu Kaishū (1823–1899), Japanese nobleman, politician and shipbuilding engineer
- Katsu, Alma (* 1959), American author
- Katsu, Shintarō (1931–1997), Japanese actor, singer, film producer and director
- Katsuda, Tetsu (1896–1980) Japanese painter
- Katsuhikari, Toshio (1942-2018), Japanese sumo wrestler
- Katsukawa, Shunshō (1726–1793), master of the Japanese woodblock print (Ukiyo-e)
- Katsuki, Kyoto (* 1954), Japanese judoka
- Katsuki, Yasuji (1905-1994), Japanese physiologist
- Katsulas, Andreas (1946-2006), American actor
- Katsumata, Susumu (* 1956), Japanese soccer player
- Katsumata, Yoshinori (* 1985), Japanese soccer player
- Katsuni (* 1979), French porn actress
- Katsunuma, Seizō (1886–1963), Japanese medic
- Katsura (1948-2014), Japanese prince
- Katsura Tarō (1848–1913), Japanese general and politician; 11th, 13th and 15th Prime Ministers of Japan
- Katsura, Hideki (* 1970), Japanese soccer player
- Katsura, Masakazu (* 1962), Japanese mangaka (comic artist)
- Katsura, Sanshi (* 1943), Japanese raguko, television presenter and film announcer
- Katsura, Yuki (1913–1991), Japanese painter
- Katsuragawa, Hoshū (1751–1809), Japanese medic
- Katsuro, Yūji (* 1949), Japanese skier
- Katsushika, Hokusai († 1849), Japanese ukiyo-e artist
- Katsuya, Bernard Taiji (* 1955), Japanese clergyman, Roman Catholic bishop of Sapporo
- Katsuya, Toshinobu (born 1961), Japanese soccer player
- Katsuyama, Hitomi (* 1994), Japanese hammer thrower
- Katsuyama, Maho (* 1984), Japanese skeleton pilot
Katt
- Katt, Carmen (* 1975), German actress and voice actress
- Katt, Geraldine (1921–1995), Austrian film actress
- Katt, Nicky (* 1970), American actor
- Katt, Stephan (* 1979), German motorcycle racer, Europe and world champion
- Katt, William (born 1951), American actor
- Kattan, Assaad Elias (* 1967), Orthodox theologian
- Kattan, Chris (* 1970), American actor and comedian
- Kattar, Demianos (* 1960), Lebanese politician
- Kattash, Oded (* 1974), Israeli basketball player and current coach
- Kattau, Gerd (* 1950), German badminton player
- Katte, August von (1711–1779), Prussian major and chief of the 4th Standing Grenadier Battalion
- Katte, Bernhard Christian von (1700–1778), Prussian major general, chief of the Dragoon Regiment No. 1
- Katte, Bodo von (1799–1876), German officer and parliamentarian
- Katte, Dieter (1941–2016), German Roman Catholic clergyman, homileticist and publicist
- Katte, Friedrich Heinrich von (1740–1813), Prussian lieutenant general, chief of Dragoon Regiment No. 4
- Katte, Friedrich von (1770–1836), Prussian officer and freedom fighter
- Katte, Gottfried von (1789–1866), Prussian lieutenant general
- Katte, Hans Heinrich von (1681–1741), Prussian Field Marshal General
- Katte, Hans Hermann von (1704–1730), lieutenant in the Prussian army and childhood friend of Friedrich II.
- Katte, Heinrich Christoph von (1699–1760), Prussian Minister of War
- Katte, Johann Friedrich von (1698–1764), Prussian lieutenant general and chief of the Old Prussian cuirassier regiment K 3
- Katte, Karl Aemilius von (1706–1757), Prussian major general, chief of Dragoon Regiment No. 4
- Katte, Karl von (1750–1821), Prussian district administrator
- Kattenbeck, Dieter (* 1936), German financial economist, trade unionist and senator (Bavaria)
- Kattenbeck, Kira (* 1992), German badminton player
- Kattenbusch, Dieter (* 1952), German linguist and university professor, professor of Romance linguistics
- Kattenbusch, Ferdinand (1851–1935), German Protestant theologian, professor and rector
- Katteneder, Willibald (* 1968), Austrian sculptor, installation artist, nature and landscape mediator
- Kattenstroth, Ludwig (1906–1971), German civil servant and state secretary
- Kattentidt, Karl (1865–1931), German architect and politician
- Katter, Berndt (1932–2014), Finnish pentathlete
- Katter, Friedrich (1842–1913), German teacher and entomologist
- Katterbach, Klaus (1908–1971), German physicist
- Katterbach, Noah (* 2001), German soccer player
- Katterbauer, Bernhard Anton († 1779), Bohemian sculptor and wood carver of the Baroque
- Katterbauer, Franz Martin († 1730), Bohemian sculptor and wood carver of the Baroque
- Katterfeld, Anna (1880–1964), German writer
- Katterfelto († 1799), German magician, scientific consultant and quack
- Kattey, Ignatius (* 1948), Anglican theologian and Archbishop of Niger Delta North
- Katthagen, Bernd-Dietrich (* 1952), German orthopedist
- Kattilakoski, Teemu (* 1977), Finnish cross-country skier
- Kattilathu, Biyon (* 1984), German motivational speaker, author and lecturer with Indian roots
- Kattinger, Luisa (* 1995), German cyclist
- Kattmann, Ulrich (* 1941), German biologist
- Kattner, Alfred (1896–1934), German party functionary (KPD)
- Kattner, Clemens (1871–1945), Austrian architect
- Kattner, Heinz (* 1947), German writer
- Kattner, Karin (* 1944), German badminton player
- Kattner, Markus (* 1970), German-Swiss football official
- Kattnig, Franc (* 1945), Austrian publisher
- Kattnig, Wolfgang (* 1963), Austrian triathlete
- Kattnigg, Evelyn (* 1966), Austrian politician (FPÖ), member of the state parliament
- Kattnigg, Rudolf (1895–1955), Austrian composer, pianist and conductor
- Kattrukudiyil, John Thomas (* 1948), Indian clergyman, Bishop of Itanagar
- Kattukallil, Samuel Irenios (* 1952), Indian clergyman, Syro-Malankar bishop of Pathanamthitta
- Kattumana, Abraham (1944–1995), Indian clergyman, archbishop and Vatican diplomat
- Kattwinkel, Lieselotte , German writer, translator and photographer
- Kattwinkel, Wilhelm (1866–1935), German neurologist and paleontologist
- Kattwinkel, Wilhelm (1883–1953), German politician (NSDAP), MdR
Katu
- Katukow, Mikhail Efimovich (1900–1976), Soviet general
- Katukowa, Jekaterina Sergejewna (1914–2015), Russian Central Committee stenographer, field shearer and writer
- Katulis, Artūras (* 1981), Lithuanian ice hockey player
- Katumbi, Moïse (* 1964), Congolese businessman and politician
- Katunarić, Vjeran (* 1949), Yugoslav and Croatian sociologist
- Katunda, Eunice (1915–1990), Brazilian composer
- Katuoka, Saulius (* 1950), Lithuanian legal scholar
- Katus, Hugo A. (* 1951), German cardiologist and university professor
- Katus, Ryszard (* 1947), Polish decathlete
- Katuschew, Konstantin Fjodorowitsch (1927-2010), Soviet politician and diplomat
- Katuwa , King of Karkemiš
- Katuwal, Bishnu (* 1985), Nepalese badminton player
Catw
- Katwijk, Alain van (* 1979), Dutch cyclist
- Katwijk, Paul van (1885–1974), American pianist, conductor and composer
Katy
- Katy B (* 1989), British singer-songwriter
- Katyal, Neal (* 1970), American lawyer
- Katys, Georgi Petrovich (1926–2017), Soviet aspirant cosmonaut
- Katyshev, Alexei Jurjewitsch (1949–2006), Soviet actor
- Katyshev, Ruslan (* 1983), Ukrainian athlete
cat
- Katz, AL , American writer and producer of television series and films
- Katz, Adolf (1899–1980), German politician (NSDAP), lawyer, policeman, member of the German parliament and SS leader
- Katz, Albert (1858–1923), German writer
- Katz, Alex (* 1927), American painter
- Katz, Alfred (* 1939), German lawyer and mayor of Ulm
- Katz, Amir (* 1973), Israeli pianist
- Katz, Amron Harry (1915–1997), American physicist and aerial reconnaissance specialist
- Katz, Andreas (* 1954), German politician (Alliance 90 / The Greens)
- Katz, Andreas (* 1988), German cross-country skier
- Katz, Anne Rose (1923–2011), German journalist, writer and screenwriter
- Katz, Benjamin (* 1939), German photographer
- Katz, Bernard (1911–2003), British biophysicist, neurophysiologist and Nobel Prize winner
- Katz, Carl (1899–1972), German entrepreneur, chairman of the Bremen Jewish community
- Katz, Cary (* 1970), American entrepreneur and poker player
- Katz, Casimir (1925–2008), German entrepreneur and publisher
- Katz, Casimir Otto (1856–1919), German timber industrialist
- Katz, Casimir Rudolf (1824–1880), German timber industrialist and politician, MdR
- Katz, Charles (* 1927), American mathematician and computer scientist
- Katz, Daniel (1903-1998), American psychologist
- Katz, Daniel (* 1938), Finnish writer
- Katz, David (1884–1953), German experimental psychologist
- Katz, Delwin (1887–1933), German doctor and concentration camp prisoner
- Katz, Dick (1916–1981), British jazz musician (piano)
- Katz, Dick (1924–2009), American jazz musician (piano, composition, arrangement) and music journalist and producer
- Katz, Dill (* 1946), British jazz bassist
- Katz, Dovid (* 1956), American Yiddish linguist, political activist
- Katz, Eberhard (1928–2002), German opera singer
- Katz, Elias (1901–1947), Finnish athlete
- Katz, Ephraim (1932–1992), Israeli film journalist and author
- Katz, Eric , American mathematician
- Katz, Erich (1900–1973), German-American musicologist, composer, music critic and musician
- Katz, Franz (1782–1851), German portrait and miniature painter, draftsman, art teacher, art dealer and art collector
- Katz, Fred (1919–2013), American cellist, composer and ethnomusicologist
- Katz, Friedrich (1927–2010), Austrian ethnologist, professor of Latin American history in Berlin and later in Chicago
- Katz, Gail , American film and television producer
- Katz, Gerson ben Solomon Kohen , Prague printer
- Katz, Gilles (* 1937), French actor, director and screenwriter
- Katz, Gloria (1942–2018), American screenwriter and producer
- Katz, Guillaume (* 1989), Swiss football player
- Katz, Günter (* 1962), German major general
- Katz, HW (1906–1992), Austrian writer and journalist
- Katz, Haim (* 1947), Israeli politician
- Katz, Hanna (1902–1986), German politician (FDP)
- Katz, Hanns Ludwig (1892–1940), German expressionist painter
- Katz, Hartmut (1943–1996), German Finnougrist and linguist
- Katz, Irma (1888–1933), Austrian painter
- Katz, Israel (1927–2010), Austrian-Israeli politician
- Katz, Israel (* 1955), Israeli politician
- Katz, Iwan (1889–1956), German politician (SPD, USPD, KPD, SED), MdR
- Katz, Jack (* 1944), American sociologist and university professor
- Katz, Jacob (1904–1998), Israeli historian
- Katz, Janina (1939–2013), Danish writer, translator and poet
- Katz, Jeff (* 1943), American music producer
- Katz, Jerrold (1932–2002), American philosopher and linguist
- Katz, Jonathan David (* 1958), American art historian
- Katz, Jonathan Ned (* 1938), American historian
- Katz, Joseph († 2004), American spy for Soviet secret services
- Katz, Karl (1929–2017), American art historian and museum director
- Katz, Lawrence (* 1959), American economist
- Katz, Leo (1892–1954), Austrian writer in German and Yiddish
- Katz, Louis N. (1897–1973), American medic
- Katz, Maxim Yevgenyevich (* 1984), Russian politician
- Katz, Melanie , German-Swiss author and sociologist
- Katz, Michael (* 1954), Austrian film producer and film production manager
- Katz, Mike (* 1944), American bodybuilder
- Katz, Mîndru (1925–1978), Israeli pianist
- Katz, Nets (* 1973), American mathematician
- Katz, Nicholas (* 1943), American mathematician
- Katz, Omri (* 1976), American actor
- Katz, Otto (1895–1952), Czechoslovakian author and agent
- Katz, Otto (1904–1976), German Protestant theologian
- Katz, Pamela (* 1958), American screenwriter, writer and professor
- Katz, Paul (* 1941), American cellist and music teacher
- Katz, Phil (1962–2000), American software developer, inventor of ZIP compression
- Katz, Richard (1888–1968), German-Brazilian journalist and travel writer of Bohemian origin
- Katz, Rieke (* 1986), German jazz musician (singer, pianist)
- Katz, Robert (1933-2010), American investigative writer and screenwriter
- Katz, Ronald A. (* 1936), American inventor
- Katz, Rosa , Jewish psychiatric patient, Nazi victim
- Katz, Rosa (1885–1976), German educator and developmental psychologist
- Katz, Ross (* 1971), American film producer and film director
- Katz, Rudolf (1895–1961), German politician (SPD), Member of the Bundestag, constitutional judge
- Katz, Samuel L. (* 1927), American physician (pediatrics), virologist and vaccine developer
- Katz, Schmuel (1914–2008), Israeli politician, writer, historian and journalist
- Katz, Sheldon (* 1956), American mathematician
- Katz, Shmuel (1926–2010), Hungarian-Israeli artist
- Katz, Sidney (1914–2009), American film editor
- Katz, Stephan (* 1970), German comic artist
- Katz, Stephen M. (* 1946), American cameraman
- Katz, Steve (* 1935), American writer
- Katz, Steve (* 1945), American guitarist and singer
- Katz, Steven T. (* 1944), American historian
- Katz, Thomas (* 1936), American chemist and university professor
- Katz, Victor J. (* 1942), American mathematician, mathematician and mathematician
- Katz, Virginia , American film editor
- Katz, William (1895–1988), German teacher, cantor and rabbi
- Katz, Willy (1878–1947), German-Jewish physician
- Katz, Zwi (* 1927), Holocaust survivor and author
- Katz-Aereboe, Julie (1888–1927), German painter and art teacher
- Katz-Oz, Avraham (* 1934), Israeli politician
- Katzarkov, Ludmil (* 1961), Bulgarian mathematician
- Katzav, Mosche (* 1945), Israeli President (2000–2007)
- Katzberger, Paul (1921–2014), Austrian architect and mayor of Perchtoldsdorf
- Katzen, Tobi (* 1981), German author and slampoet
- Katzenbach, John (* 1950), American writer
- Katzenbach, Nicholas (1922–2012), American politician
- Katzenbach, Rolf (* 1950), German civil engineer
- Katzenbeier, Hubert (* 1936), German jazz musician
- Katzenbeisser, Rainer (* 1978), Austrian strength athlete
- Katzenberg, Jacob (* 1888), American mobster
- Katzenberg, Jeffrey (* 1950), American film producer
- Katzenberger, Andrea (* 1962), German film director and screenwriter
- Katzenberger, Daniela (* 1986), German model and reality TV actress
- Katzenberger, Günter (* 1937), German musicologist and university professor
- Katzenberger, Hermann (1891–1958), German diplomat and civil servant
- Katzenberger, Leo (1873–1942), German businessman
- Katzenberger, Rudolf (1912–1999), German cook, author of culinary literature
- Katzenellenbogen, Adolf (1901–1964), German-American art historian
- Katzenellenbogen, Albert , German judiciary, banker and victim of the Holocaust
- Katzenellenbogen, Edwin , inmate doctor in Buchenwald concentration camp
- Katzenellenbogen, Jehezkel († 1749), rabbi
- Katzenellenbogen, Ludwig (1877–1944), brewery director
- Katzenellenbogen, Meir († 1565), Venetian rabbi
- Katzenellenbogen, Oskar (1876–1942), Polish journalist and literary critic
- Katzenellenbogen, Tamara Dawydowna (1894–1976), Russian-Soviet architect and town planner
- Katzenelnbogen, Lisa von (1299–1357), abbess at Nottuln Abbey
- Katzenelnbogen, Ottilie von († 1517), Margravine of Baden
- Katzenelson, Ariel (* 1993), Israeli volleyball player
- Katzenelson, Jizchak (1886–1944), Jewish poet and playwright
- Katzengruber, Franz (1901–1994), Austrian politician (SPÖ), member of the state parliament, member of the national council
- Katzengruber, Werner (* 1963), Austrian non-fiction author and coach
- Katzenmaier, Katharina (1918–2000), German Catholic nun and Nazi victim
- Katzenmeier, Adolf (1934–2016), German physiotherapist
- Katzenmeier, Christian (* 1964), German legal scholar and professor
- Katzenstein, Alfred (1915–2000), German-American psychologist, psychotherapist and politically motivated resistance fighter during the Nazi era
- Katzenstein, Bernd (* 1940), German publicist and journalist
- Katzenstein, Dietrich (1923–2008), German lawyer, judge at the German Federal Constitutional Court
- Katzenstein, Edgar (1879–1953), German rower
- Katzenstein, Ernst (1897–1989), German lawyer and Zionist
- Katzenstein, Ernst-Ulrich (1936–2020), Swiss politician of the DSP
- Katzenstein, Hermann (* 1969), German politician (Bündnis 90 / Die Grünen), MdL
- Katzenstein, Juan Carlos (1925-2018), Argentine diplomat
- Katzenstein, Kurt (1895–1984), German aviation pioneer, pilot and entrepreneur
- Katzenstein, Leopold (1843–1915), American engineer
- Katzenstein, Louis (1824–1907), German painter
- Katzenstein, Moritz (1872–1932), German surgeon
- Katzenstein, Peter (* 1945), German political scientist
- Katzenstein, Richard (1868–1942), German chemist and entrepreneur, victim of the Holocaust
- Katzenstein, Robert (1928–2006), German Marxist economist
- Katzenstein, Simon (1868–1945), German SPD politician
- Katzenstein, Walter , German Jewish lawyer and victim of the Holocaust
- Katzenstein, Walther (1878–1929), German rower
- Katzenstein, Willy (1874–1951), German lawyer and politician (DDP)
- Katzer, Catarina (* 1973), German social psychologist and cyber psychologist
- Katzer, Ernst (1839–1921), German pastor, Saxon church councilor and publicist
- Katzer, Frederick Xavier (1844–1903), Austrian clergyman and Roman Catholic Archbishop of Milwaukee
- Katzer, Friedrich (1861–1925), Bohemian-Austrian geologist and mineralogist
- Katzer, Georg (1935–2019), German composer
- Katzer, Hans (1919–1996), German politician (CDU), Member of the Bundestag, MEP
- Katzer, Josef , furrier in Budapest
- Katzer, Markus (* 1979), Austrian soccer player
- Katzer, Miriam (* 1994), German actress
- Katzer, Nikolaus (* 1952), German historian
- Katzer, Patrick (* 1996), German actor
- Katzer, Rudolf (* 1888), German cyclist
- Katzer, Tim-Philip (* 1993), German ice hockey player
- Katzer, Viktor , German soccer player
- Katzer, Wolfgang (* 1950), Austrian music comedian, part of Muckenstruntz & Bamschabl
- Katzgrau, Maria (1912–1998), German painter, graphic artist and glass designer
- Katzheimer, Wolfgang (1450–1508), German painter
- Katzian, Wolfgang (* 1956), Austrian trade unionist and politician (SPÖ), member of the National Council
- Katzianer, Hans (1491–1539), Slovenian nobleman and general of the Habsburgs
- Katzidis, Christos (* 1969), German policeman and politician (CDU), MdL NRW
- Katzin, Lee H. (1935–2002), American film and television director
- Katzinger, Willibald (1949–2019), Austrian historian and museum director
- Katzir, Aharon († 1972), Israeli chemist
- Katzir, Ephraim (1916–2009), Israeli biophysicist and politician
- Katzirz, Dávid (* 1980), Hungarian handball player
- Katzka, Gabriel (1931–1990), American theater manager and film producer
- Katzlberger, Engelbert (1868–1959), Austrian farmer and politician, member of the state parliament
- Katzler, Andreas Georg Friedrich von (1764–1834), Prussian lieutenant general
- Katzler, Nikolaus Andreas von (1696–1760), Prussian lieutenant general, head of the Gensdarmes regiment and knight of the Order of the Black Eagle
- Katzler, Philipp (* 1981), Austrian soccer player
- Katzler, Vinzenz (1823–1882), Austrian painter and graphic artist
- Katzmair, Moritz (* 1984), German actor and theater director
- Katzman, Bo (* 1952), Swiss musician, singer, teacher and leader of the largest gospel choir in Europe
- Katzman, Lee (1928-2013), American jazz trumpeter
- Katzmann, Ernst (1897–1968), German politician (NSDAP), MdR
- Katzmann, Frederick G. (1875–1953), American lawyer
- Katzmann, Fritz (1906–1957), German SS group leader, lieutenant general of the Waffen SS (police) and war criminal
- Katzmann, Nosie (* 1959), German music producer
- Katzmann, Werner (1943-2004), Austrian marine biologist
- Katzmarek, Gabriele (* 1960), German politician (SPD), Member of the Bundestag
- Katzmarz, Hubert (1952–2003), German writer, editor, publisher, translator
- Katzmarzik, Heike (* 1954), German director and screenwriter
- Katznelson, Berl (1887–1944), Russian Zionist labor leader and politician
- Katznelson, Ira (* 1944), American contemporary historian and political scientist
- Katznelson, Yitzhak (* 1934), Israeli mathematician
- Katznelson-Shazar, Rachel (1885–1975), Israeli publicist
- Katzor, Horst (1918–1998), German engineer and politician (SPD), Lord Mayor of Essen (1969–1984)
- Katzor, Klaus (* 1942), German badminton player
- Katzow, Hinrich , patrician, mayor of Rostock
- Katzschke, Jan (* 1972), German church musician, harpsichordist and organist
- Katzschmann, Ewald (1913–1994), German chemist
- Katzschner, Torsten (* 1973), German disc jockey and music entrepreneur
- Katzung, Gerhard (1935–2008), German geologist
- Katzur, Klaus (1943–2016), German swimming athlete
- Katzur, Yiftach (* 1958), Israeli actor
- Katzurin, Muli (* 1954), Israeli basketball coach
- Katzy, Bernhard (1962–2015), German business graduate and engineer
- Katzy, Dietmar (1935–2013), German politician (CDU), MdL