O'Gorman is a surname. Notable people with the surname include:

• Áine O'Gorman (born 1989), Irish footballer
• Camila O'Gorman (1828–1848), wealthy socialite and figure of scandal in 19th century Argentina
• Chevalier O'Gorman (1732–1809), Irish soldier and genealogist
• Colm O'Gorman (born 1966), founder and director of One in Four, a national Irish charity
• Dave O'Gorman (David O'Gorman; born 1972), English football winger
• David O'Gorman (c. 1865 – 1945), Irish politician
• Dean O'Gorman (born 1976), New Zealand actor, artist, and photographer
• Denis O'Gorman (1914–2005), former Irish sportsman who played hurling with Tipperary
• Denis O'Gorman (athlete) (1928–2011), British Olympic long-distance runner
• Dick O'Gorman, Irish hurler
• Edmundo O'Gorman (1906–1995), Mexican writer, historian and philosopher
• James Aloysius O'Gorman (1860–1943), one-term United States Senator from New York
• James F. O'Gorman (born 1933), American architectural historian, taught at Wellesley College
• James Myles O'Gorman, (1804–1874), Irish-born bishop of the Catholic Church in the United States
• Joe O'Gorman (Joseph George O'Gorman; 1890–1974), British entertainer and cricketer
• John O'Gorman (piper) (born 1860s), Irish piper
• Juan O'Gorman (1905–1982), Mexican artist, painter and architect
• Kieran O'Gorman (born 1972), Irish hurler
• Larry O'Gorman (born 1968), former Irish sportsman who played hurling with Wexford in the 1990s
• Marie O'Gorman, Irish camogie player
• Mervyn O'Gorman (1871–1958), Irish-born electrical and aeronautical engineer
• Michael O'Gorman (footballer) (also known as Mick Minahan; 1874–1937), Australian rules footballer
• Michael O'Gorman (rowing) (1965–2018), American coxswain
• Ned O'Gorman (1929–2014), American poet and educator
• Noel O'Gorman (born 1944), Irish hurler
• Patrick O'Gorman, Irish Fine Gael politician
• Purcell O'Gorman (1820–1888), Irish nationalist politician and Member of Parliament in the House of Commons of the United Kingdom
• Robert O'Gorman (umpire), Australian rules football umpire
• Roderic O'Gorman (born 1983), Irish politician, Chairman of the Green Party (from 2011)
• Seán O'Gorman (born 1960), Irish hurler
• Terence O'Gorman (1919–2003), a poet from the Republic of Ireland
• Terry O'Gorman, Australian lawyer, president of the Australian Council for Civil Liberties
• Tim O'Gorman (born 1967), former cricketer who played for Derbyshire
• Thomas O'Gorman (1843–1921), American prelate of the Roman Catholic Church, Bishop of Sioux Falls (1896–1921)
• Tony O'Gorman (born 1958), Australian politician, member of the Western Australian Legislative Assembly (2001–2013)
• Wayne O'Gorman, Irish Gaelic footballer, and hurler