Peter Brown may refer to:
Business
Peter T. Brown, English executive director of the Free Software Foundation
Peter M. Brown (born 1941), Canadian businessman
Peter Fitzhugh Brown (born 1955), CEO of Renaissance Technologies
Music
Peter McCarrick Brown, former drummer from the American band Wheatus
Pete Brown (jazz musician) (1906–1963), American jazz saxophonist
Peter Brown (singer) (born 1953), American funk singer, 1970s
Pete Brown (1940–2023), British rock singer, 1960s
Peter Brown (music manager), personal assistant to The Beatles and Brian Epstein
Politics
Peter Brown (Newfoundland politician) (c. 1797–1845), one of Newfoundland's first elected member of House of Assembly
Peter Brown (South African politician) (1924–2004), founding member of the South African Liberal Party
Peter Brown (New Zealand politician) (born 1939), New Zealand First MP and former deputy party leader, 1996–2008
Peter Nicholas Brown (1797–1846), or Peter Broun, first colonial secretary of Western Australia (1829–1846)
Peter Hoyt Brown (1936–2017), council member, city of Houston
Peter Campbell Brown (1913–1994), corporation counsel for New York City and Justice Department official
Sports
Pete Brown (golfer) (1935–2015), PGA Tour golfer
Peter Brown (ice hockey) (born 1954), American ice hockey defenceman
Pete Brown (American football) (1930–2001), American football player
Peter Brown (rugby league) (born 1961), New Zealand rugby league footballer
Peter Brown (rugby union) (1941–2025), Scottish rugby union footballer
Peter Brown (footballer, born 1934) (1934–2011), with Southampton and Wrexham
Peter Brown (footballer, born 1961), English former footballer
Peter Brown (field hockey), field hockey player from Northern Ireland
Australian rules footballers
Peter Brown (Australian footballer, born 1906) (1906–1988), North Melbourne player
Peter Brown (Australian footballer, born 1949), Geelong player
Peter Brown (Australian footballer, born 1952), South Melbourne player
Peter Brown (Australian footballer, born 1957), Fitzroy player
Peter Brown (Australian footballer, born 1958), Carlton and St Kilda player
Peter Brown (Australian footballer, born 1963), St Kilda player
Literature, arts and entertainment
Peter Brown (naturalist) (died 1799), British painter and natural history illustrator
Peter Brown (British artist) (born 1967), British painter
Peter Brown (illustrator) (born 1979), American illustrator of children's books
Peter Brown (New Zealand artist) (1921–2005), New Zealand painter
Peter Brown (actor) (1935–2016), American television actor
Pete Brown (writer) (born 1968), UK writer on drink and drinking culture
Peter Brown (Oz), child protagonist of the Oz books by Ruth Plumly Thompson
Peter Currell Brown (born 1936), British novelist
Other
Peter Browne (Mayflower passenger) (1594–1633), also spelled Brown, Pilgrim and English colonist, signer of the Mayflower Compact
Peter Brown (British Army officer) (1775–1853), British Army officer interested in the welfare of soldiers' children
Peter Brown (VC) (1837–1894), Swedish recipient of the Victoria Cross
Peter Hume Brown (1849–1918), Scottish biographer and historian
Peter Brown (historian) (born 1935), Irish historian and biographer specializing in Late Antiquity and the cult of Saints
Peter Douglas Brown (born 1925), historian of eighteenth-century British politics
Peter Brown (bishop) (born 1947), New Zealand-born Catholic bishop in American Samoa
Peter J. Brown (born 1963), U.S. Coast Guard rear admiral and Homeland Security Adviser
Peter J. Brown, computer scientist, developer of the Guide hypertext system and ML/I macro system