Horst (family name)
Horst or Horstius is the family name of the following people:
- Adolf von der Horst (1806–1880), German government official and member of parliament
 - Alexander Horst (* 1982), Austrian beach volleyball player
 - Annemarie Horschitz-Horst (1899–1970), German translator
 - Anthon van der Horst (1899–1965), Dutch organist, conductor, composer and music teacher
 - Arend Jan van der Horst (* 1943), Dutch landscape architect
 - Arnold von Horst († 1630), canon in Paderborn
 - August von der Horst (1792–1868), Prussian lieutenant general
 - Bets ter Horst (1908–1997), Dutch sprinter, hurdler and high jumper
 - Bodo von der Horst (1838–1926), Prussian lieutenant general
 - Carl Horst (1875–1934), German art historian
 - Christin Horst (* 1992), German soccer player
 - Christoph auf der Horst (* 1961), German specialist in German
 - Cornelius van der Horst (1906–1975), German writer
 - Curt Horst (1902–1990), German politician (NSDAP)
 - Dethard Horst (also Horstius , zu Horst ; 1548–1618), German legal scholar
 - Dietmar Horst (* 1962), Austrian publicist and writer
 - Eberhard Horst (1924–2012), German writer
 - Eduard Horst (1893–1966), German landscape, portrait and glass painter from the Düsseldorf School
 - Edwin von der Horst (1793–1862), German lawyer
 - Egon Horst (1938–2015), German soccer player
 - Elisabeth ter Horst (1908–1997), Dutch athlete
 - Enrique ter Horst (* 1948), Venezuelan lawyer
 - Erdwin von der Horst (bailiff) (1761–1816), electoral Brunswick-Lüneburg and royal Hanover forest officer, auditor, clerk and bailiff
 - Erdwin von der Horst (lawyer) (1793–1862), German landowner and lawyer
 - Erdwin von der Horst (politician) (Erdwin Christian von der Horst; 1823–1884), German landowner, lawyer; MP, Senator, Editor and Writer
 - Ernst Emil Horst (1843–1917), German politician
 - Evert van der Horst (1930 / 1931–2011), Dutch football player
 - Florian Horst (* 1990), German ski jumper
 - Franz Horst (1862–1950), Austrian painter
 - Friedrich Horst (1896–1962), German theologian and university professor
 - Georg Conrad Horst (1767 or 1769–1832), German Protestant theologian, preacher and writer
 - Gerrit Willemsz Horst (1602–1652), Dutch painter
 - Gregor Horst (1578–1636), German physician, see Gregor Horstius
 - Gregor Horst (1626–1661), German physician
 - Guido Horst (* 1955), German journalist and publicist
 - Günter Horst (* 1919), German football coach
 - Guusje ter Horst (* 1952), Dutch politician (PvdA)
 - Hartmut Horst (1941–2013), German internist
 - Heinrich Horst (mint master) (before 1711 – after 1719), electoral Brunswick-Lüneburg mint master in Zellerfeld
 - Heinrich Horst (Bishop) (1902–1946), German religious and apostolic vicar of Lwangwa in Rhodesia
 - Heinz-Theo Horst (* 1947), German soccer player
 - Herman van der Horst (1910–1976), Dutch documentary film director and cameraman
 - Horst P. Horst (1906–1999), American photographer
 - Ingo Horst (* 1977), German orienteer
 - Jacob Horst (1537–1600), German medic
 - Jerald terHorst (1922-2010), American journalist, White House spokesman
 - Jochen Horst (* 1961), German actor
 - Johann Daniel Horst (1616–1685), German physician and balneologist, see Johann Daniel Horstius
 - Johann Nicolaus Horst (1601–1685), German theologian
 - Johannes Horst (* 1950), German lawyer and university professor
 - Johannes ter Horst (1913–1944), Dutch resistance fighter
 - Jørn Lier Horst (* 1970), Norwegian author
 - Julius Horst (writer) (pseudonym for Josef Hostasch; 1864–1943), Austrian playwright
 - Julius August von der Horst (1723–1791), German politician
 - Julius von Horst (1830–1904), Austrian major general and statesman
 - Karl Horst (politician) (1898–1987), German chemist and politician (CDU)
 - Karl von der Horst (1780–1861), German government official and member of parliament
 - Karl August Horst (1913–1973), German writer, translator and literary critic
 - Karl-Wilhelm ter Horst (* 1950), German social scientist and theologian
 - Kaspar Horst (1929–2014), German aquarist and publisher
 - Leopoldo Horst (1918–1987), Brazilian cactus collector
 - Louis Horst (1884–1964), American composer and choreographer
 - Louis Anton von Horst (1865–1947), German-American businessman and spy
 - Ludwig Horst (1829–1891), German painter
 - Lutz van der Horst (* 1975), German comedian
 - Marloes Horst (* 1989), Dutch photo model
 - Martin van der Horst (* 1965), Dutch volleyball player
 - Mauritz Karl von der Horst zu Cappeln (1716–1794), Canon in Münster
 - Maximilian von der Horst († 1589), canon in Münster
 - Norbert Horst (* 1956), German writer
 - Olivier ter Horst (* 1989), Dutch football player
 - Paul Horst-Schulze (1876–1937), German painter and graphic artist
 - Peter Horst (1927–2008), German pastor and hymn author
 - Philipp Horst (1584–1664), German rhetorician and moral philosopher
 - Robert Horst (1858 – after 1928), German composer
 - Rotger von der Horst († 1598), canon in Münster and Paderborn
 - Rütger von der Horst (1519–1582), German marshal and governor, builder of Horst Castle
 - Theo van der Horst (1921–2003), Dutch painter, sculptor, graphic artist and glazier
 - Ulrich Horst (* 1931), German Catholic theologian
 - Ulrich von der Horst (1793–1867), Schleswig-Holstein general
 - Wilhelm von der Horst (1786–1874), German lieutenant general
 - Wilhelm Horst (painter) (1852–1940), German painter and restorer