O'Brien (family name)
O'Brien is a family name of Irish origin.
variants
Name bearer
A.
- Alan O'Brien (born 1985), Irish football player
- Alex O'Brien (born 1970), American tennis player
- Andrea O'Brien (* 1967), German literary translator
- Andy O'Brien (born 1979), Irish football player
- Anne O'Brien, 2nd Countess of Orkney († 1756), Scottish-British noblewoman
- Anne O'Brien (soccer player) (1956-2016), Irish soccer player
- Anne Vrana-O'Brien (1911–2007), American sprinter
- Austin O'Brien (born 1981), American actor
B.
- Barbara O'Brien (* 1950), American politician
- Bill O'Brien (* 1969), American football coach
- Brendan O'Brien (cricketer) (born 1942), Irish cricketer
- Brendan O'Brien (journalist) , Irish journalist
- Brendan O'Brien (music producer) (* 1960), American music producer, sound engineer and musician
- Brendan O'Brien (voice actor) (born 1962), American voice actor
- Brendan O'Brien (screenwriter) , American screenwriter
- Brendan Michael O'Brien (born 1943), Canadian clergyman, Archbishop of Kingston
- Brian O'Brien (1898-1992), American physicist
C.
- Callum O'Brien (* 1982), New Zealand squash player
- Caragh O'Brien , American writer
- Catherine Amelia O'Brien (1881–1963), Irish glass painter
- Cathy O'Brien (author) (born 1957), American writer
- Cathy O'Brien (athlete) (born 1967), American marathon runner
- Charles O'Brien , pseudonym of Charles Byrne (1761–1783), Irish tall man
- Charles O'Brien (1882–1968), Scottish composer
- Charles O'Brien (politician) , Canadian politician
- Charles FX O'Brien (1879–1940), American politician
- Charlie O'Brien (born 1961), American baseball player
- Chris O'Brien (1881–1951), American football manager
- Colin O'Brien (born 1984), Irish tennis player
- Conan O'Brien (born 1963), American talk show host
- Conor Cruise O'Brien (1917-2008), Irish politician
D.
- Dan O'Brien (born 1966), American decathlete
- Danny O'Brien (* 1969), English technology journalist
- Darcy O'Brien (1939–1998), American writer and literary critic
- Darragh O'Brien (* 1974), Irish politician
- Dave O'Brien (actor) (1912–1969), American actor, screenwriter and director
- Dave O'Brien (ice hockey player) (born 1962), Canadian ice hockey player
- Davey O'Brien (1917–1977), American football player
- David O'Brien (actor) (1937–1989), American soap opera actor
- David O'Brien (swimmer, Australia) , Australian swimmer
- David O'Brien (sailor) (born 1963), Irish sailor
- David O'Brien (ice hockey player) (born 1966), American ice hockey player
- David O'Brien (rider) (* 1978), Irish show jumper
- David O'Brien (swimmer, Great Britain) (born 1983), British swimmer
- Dean O'Brien (* 1990), South African tennis player
- Denis O'Brien (1837–1909), American lawyer and politician
- Denis O'Brien (historian of philosophy) (* 1936), British historian of philosophy
- Denis O'Brien (producer) , co-founded HandMade Films with George Harrison
- Diana Gabrielle O'Brien († 2008), Canadian model
- Dominic O'Brien (* 1957), English world memory champion and author
- Donald O'Brien (1930-2003), Irish-French actor
- Dylan O'Brien (born 1991), American actor
E.
- Eddie O'Brien (baseball player) (1930-2014), American baseball player
- Eddie O'Brien (Hurler) (born 1945), Irish hurler
- Edmond O'Brien (1915–1985), American actor
- Edna O'Brien (* 1930), Irish writer
- Edward O'Brien, 2nd Baronet (1705–1765), Irish nobleman and politician
- Edward O'Brien, 4th Baronet (1773–1837), Irish nobleman and politician
- Edward O'Brien, 14th Baron Inchiquin (1839–1900), Irish nobleman and politician
- Edward O'Brien (track and field athlete) (1914–1976), American track and field athlete
- Edward O'Brien (IRA member) (1974-1996), Irish IRA member
- Edward Joseph Harrington O'Brien (1890–1941), American writer
- Edwin Frederick O'Brien (* 1939), American clergyman, Archbishop of Baltimore, cardinal to the Curia
- Eugene O'Brien (* 1964), British racing car driver
F.
- Fergal O'Brien (born 1972), Irish snooker player
- Fergus O'Brien (1930-2016), Irish politician
- Fitz-James O'Brien (1828-1862) Irish writer
- Flann O'Brien (1911-1966), Irish writer
- Floyd O'Brien (1904–1968), American jazz trombonist
- Francis O'Brien (born 1943), Irish politician
G
- George O'Brien (soccer player, 1880) (1880– ??), English soccer player
- George O'Brien (1899–1985), American actor
- George O'Brien (soccer player, 1935) (born 1935), Scottish soccer player
- George O'Brien (soccer player, 1939) (1939-1995), English soccer player
- George D. O'Brien (1900–1957), American politician
- George M. O'Brien (1917–1986), American politician
- Glenn O'Brien (1947-2017), American journalist
H
- Hod O'Brien (1936-2016), American jazz pianist
I.
- Ian O'Brien (born 1947), Australian swimmer
- Ian O'Brien-Docker (* 1977), German pop-rock musician
J
- James O'Brien (Politician, 1841) (1841-1907), American politician (New York)
- James O'Brien (botanist) (1842–1930) British botanist and gardener
- James O'Brien (politician, 1874) ( Peter James O'Brien ; 1874–1947), New Zealand politician (NZLP)
- James O'Brien (track and field athlete) (1925–1988), Canadian sprinter
- James O'Brien (soccer player) (* 1987), Irish soccer player of Scottish origin
- James Bronterre O'Brien (1805–1864), Irish labor leader
- James F. O'Brien (* 1941), American chemist and university professor
- James Francis Xavier O'Brien (born 1952), American basketball coach
- James H. O'Brien (1860-1924), American politician
- James Joseph O'Brien (1930-2007), British clergyman, auxiliary bishop at Westminster
- Jay O'Brien (1883-1940), American bobsleigh athlete
- Jeremiah O'Brien (naval officer) (1744-1818), American naval officer
- Jeremiah O'Brien (politician) (1778-1858), American politician
- Jim O'Brien (Director) (1947–2012), British director
- Jim O'Brien ( American football player ) (born 1947), American football player
- Jim O'Brien (basketball player) ( James M. O'Brien ; born 1951), American basketball player
- Jim O'Brien (ice hockey player) ( James Patrick O'Brien ; * 1989), American ice hockey player
- Joan O'Brien (born 1936), American actress and singer
- Joey O'Brien (born 1986), Irish football player
- Johann von O'Brien (1775-1830), Austro-Hungarian military leader
- John O'Brien (Bishop) († 1767), Irish Roman Catholic Bishop
- John O'Brien (politician, 1794) (1794–1855) Irish politician
- John O'Brien (politician, 1847) (1847-1917), Canadian politician
- John O'Brien (politician, 1866) (1866–1932), Australian politician
- John O'Brien (Admiral) (1918–1996), Vice Admiral in the Canadian Armed Forces
- John O'Brien (rower) (1927-1995), New Zealand rower
- John O'Brien (politician, 1932) (1932–1985), American politician
- John O'Brien (writer) (1960–1994), American writer
- John O'Brien (politician, 1962) (born 1962), American politician and film director
- John O'Brien (soccer player) (born 1977), American soccer player
- John O'Brien-Docker (1938–2017), British musician, songwriter, arranger and band leader
- John A. O'Brien , American politician
- John Ambrose O'Brien (1885–1968), Canadian industrialist and founder of the Canadiens de Montréal
- John B. O'Brien (1884–1936), American actor and film director of the silent film era
- John F. O'Brien († 1927), American businessman and politician
- John L. O'Brien (1911–2007), American politician
- John P. O'Brien (1873–1951), American politician
- John P. O'Brien (translator) (* 1963), translator and poet
- Joseph O'Brien († 1945), American film producer, film director and film editor
- Joseph J. O'Brien (1897–1953), American politician
K
- Kate O'Brien (athlete) (* 1988), Canadian bobsleigh and track cyclist
- Kate O'Brien (1897–1974), Irish writer
- Katharine O'Brien , American director and screenwriter
- Katie O'Brien (* 1986), British tennis player
- Keith Patrick O'Brien (1938-2018), Scottish Roman Catholic clergyman, archbishop and cardinal
- Kelland O'Brien (* 1998), Australian cyclist
- Kerry O'Brien (born 1946), Australian athlete
- Kieran O'Brien (born 1973), British actor
- Kristine O'Brien (* 1991), American rower
L.
- Larry O'Brien (Politician, 1917) ( Lawrence Francis O'Brien ; 1917–1990), American politician
- Larry O'Brien (politician, 1949) ( Lawrence Robert O'Brien ; * 1949), Canadian politician, Mayor of Ottawa
- Leo W. O'Brien (1900–1982), American politician
- Leslie O'Brien, Baron O'Brien of Lothbury (1908–1995), British banker, member of the House of Lords
- Liam O'Brien (screenwriter) (1913–1996), American screenwriter
- Liam O'Brien (athlete) (born 1954), Irish athlete
- Liam O'Brien (soccer player, 1964) (born 1964), Irish soccer player
- Liam O'Brien (voice actor) (born 1976), American voice actor
- Liam O'Brien (soccer player, 1991) (born 1991), English soccer player
- Liam O'Brien (ice hockey player) (born 1994), Canadian ice hockey player
M.
- Maeve O'Brien-Kelly (born 1930), Irish author
- Mark O'Brien (writer) (1949–1999), American writer and journalist
- Mark O'Brien (actor) (born 1984), Canadian actor
- Mark O'Brien (cyclist) (* 1987), Australian cyclist
- Mark O'Brien (soccer player) (born 1992), Irish soccer player
- Margaret O'Brien (born 1937), American actress
- Mary O'Brien, 3rd Countess of Orkney (around 1721–1791), British nobleman
- Maureen O'Brien (born 1943), British actress
- Michael O'Brien (historian) (1948-2015), British historian
- Michael O'Brien (swimmer) ( Mike O'Brien ; born 1965), American swimmer
- Michael J. O'Brien (politician, 1939) (born 1939), American politician
- Michael J. O'Brien (archaeologist) (born 1950), American archaeologist
- Michael J. O'Brien (politician, 1955) (born 1955), American politician
- Mike O'Brien (actor) (born 1976), American actor and comedian
- Mike O'Brien (politician, 1954) (born 1954), British politician
- Mike O'Brien (Politician, Canada) , Canadian politician
- Mike O'Brien (hurling player) , (born 1978), Irish hurling player
- Miriam Hederman O'Brien (born 1932), Irish lawyer
- Murrough O'Brien, 1st Earl of Inchiquin (1618–1674), Irish nobleman
- Murrough O'Brien, 1st Earl of Thomond († 1551), Irish nobleman, last King of Thomond
- Murrough O'Brien, 1st Marquess of Thomond (1726–1808), Irish-British nobleman and politician
- Murrough O'Brien, 3rd Baron Inchiquin (1550–1574), Irish nobleman
- Murrough O'Brien, 4th Baron Inchiquin (1563–1597), Irish nobleman
N
- Nina O'Brien (* 1997), American ski racer
O
- Olivia O'Brien (* 1999), American singer and songwriter
- Oscar O'Brien (1892–1958), Canadian arranger, composer, organist, pianist and music teacher
P
- Paidi O'Brien (* 1984), Irish cyclist
- Parry O'Brien (1932-2007), American track and field athlete
- Pat O'Brien (politician, 1847) (1847-1917) Irish politician
- Pat O'Brien (actor) (1899–1983), American actor
- Pat O'Brien (politician) (born 1948), Canadian politician
- Pat O'Brien (presenter) (born 1948), American sports commentator and television presenter
- Pat O'Brien (guitarist) (born 1965), American rock guitarist
- Patrick O'Brien (politician, 1817) (1817-1887), Australian politician
- Patrick O'Brien, 2nd Baronet (1823–1895), Irish politician
- Patrick O'Brien (political scientist) (1937–1998), Australian political scientist
- Patrick O'Brien (musician) (1947-2014), American classical guitarist and lutenist
- Patrick Joseph O'Brien (1835-1911), Irish politician
- Patrick K. O'Brien (* 1932), British historian
- Patrick Thomas O'Brien (born 1951), American actor
- Patrick Wayne O'Brien (born 1948), Canadian politician
- Paul O'Brien (born 1966), English singer, songwriter and instrumentalist
- Paul O'Brien (chemist) (1954-2018), British chemist
- Percy Wyndham-O'Brien, 1st Earl of Thomond († 1774), Irish peer and British politician
- Peter O'Brien (born 1960), Australian actor
- Peter James O'Brien (1874–1947), New Zealand politician (NZLP), see James O'Brien (politician, 1874)
- Philadelphia Jack O'Brien (1878-1942), American boxer (light heavyweight), world champion
R.
- Rebecca O'Brien (* 1957), British film producer
- Richard O'Brien (born 1942), British actor, author and composer
- Robert O'Brien (Manager) ( Robert H. O'Brien ; 1907–1997), American media manager
- Robert O'Brien (racing driver) (1908–1987), American racing car driver
- Robert O'Brien (screenwriter) (1918-2005), American screenwriter
- Robert O'Brien (canoeist) (* 1933), American canoeist
- Robert C. O'Brien (writer) (1918–1973), American writer and journalist
- Robert C. O'Brien (Lawyer) ( Robert Charles O'Brien ; * 1966), American lawyer and security advisor
- Ruairí O'Brien (* 1962), Irish architect and artist
S.
- SK O'Brien-Coker , Gambian judge
- Sean O'Brien (writer) (born 1952), British writer, poet and critic
- Sean O'Brien (ice hockey player) (born 1972), American ice hockey player
- Sean O'Brien (rugby player, 1987) (born 1987), Irish rugby union player
- Sean O'Brien (rugby player, 1994) (born 1994), Irish rugby union player
- Shane O'Brien (rower) (born 1960), New Zealand rower
- Shane O'Brien (ice hockey player) (born 1983), Canadian ice hockey player
- Shaun O'Brien (* 1969), Australian cyclist
- Shauna O'Brien (actress) (born 1970), American actress and model
- Shauna O'Brien (music producer) , American music producer
- Shauna O'Brien (Director) , American television producer and director
- Sheila O'Brien (1902–1983), American costume designer
- Skip O'Brien (1950–2011), American actor
- Soledad O'Brien , American journalist
- Spencer O'Brien (* 1988), Canadian snowboarder
T
- Terry O'Brien (* 1943), American luge rider
- Thomas O'Brien (Bishop) (1792–1874), Irish clergyman, Bishop of Ossory, Ferns and Leighlin
- Thomas J. O'Brien (diplomat) (1842–1933), American diplomat
- Thomas J. O'Brien (politician) (1878–1964), American politician
- Thomas J. O'Brien (Bishop) (1935–2018), American priest, Bishop of Phoenix
- Thomas Kevin O'Brien (1923-2004), English Catholic bishop
- Tim O'Brien (author) (born 1946), American author
- Tim O'Brien (musician) (born 1954), American musician
- Timothy O'Brien (1787–1862), Irish merchant and politician
V
- Vanessa O'Brien (* 1964), British-American mountaineer
- Vincent O'Brien (1917–2009), Irish horse trainer
W.
- Willis O'Brien (1886–1962), American specialty effects specialist
- William O'Brien, 4th Earl of Inchiquin (1700–1777), Irish politician
- William O'Brien (politician, 1852) (1852-1928), Irish politician
- William O'Brien (Admiral) (born 1916), British admiral
- William O'Brien (politician, 1918) (1918-1994), Irish politician
- William B. O'Brien († 2014), American priest and addiction therapist
- William David O'Brien (1878–1962), American clergyman, auxiliary bishop in Chicago
- William J. O'Brien (1836-1905), American politician
- William L. O'Brien (* 1951), American lawyer and politician
- William Smith O'Brien (politician, 1803) (1803–1864), Irish politician
- William Smith O'Brien (Politician, 1862) (1862–1948), American politician (West Virginia)
- William X. O'Brien (1881–1968) Irish politician
Fictional people
- Miles Edward O'Brien (2347–?), Fictional character in Star Trek: The Next Century and Star Trek: Deep Space Nine