Gay is a surname. Notable people with the surname include:
Bill Gay (American football) (born 1927), American football player
Bram Gay Trumpet player and brass band enthusiast
Brian Gay, American golfer
Cesc Gay (born 1967) movie director
Claude Gay, French botanist
Connie B. Gay (1914–1989), American country music promoter
David Gay (1920–2010), British Army officer, recipient of the Military Cross, and English cricketer
Edwin Francis Gay (1867-1946), American economist
Enola Gay, name of the plane that dropped an atomic bomb on Hiroshima in 1945, named after the mother of Paul Tibbets
George H. Gay, Jr. (1917–1994), Naval aviator in World War II
George K. Gay (1810–1882), English sailor and pioneer who participated in Oregon's Provisional Government
Henry M. Gay, one of three founders of Triad Systems Corporation, now known as Activant
Hobart R. Gay (1894–1983), American general
Jacques Etienne Gay (1786–1864) French botanist
Jason Gay, birth name of contemporary Christian singer-songwriter Jason Gray. He had many recording and releases as Jason Gay before changing his name to Gray
Jean Baptiste Gay, vicomte de Martignac (1778–1832), French statesman
John Gay (1685–1732), English dramatist
John Gay (photographer) (1909–1999), English photographer
Jonathan Gay, inventor of Macromedia Flash
José Aurelio Gay (born 1965), Spanish football player and manager
Joseph Louis Gay-Lussac (1778–1850), French physicist
Mabel Gay (born 1983), Cuban triple jumper
Maria Gay (1879–1943), Catalan opera singer
Marvin Gay, Sr. (1914–1998), American minister of the House of God
Nikolai Ge or Gay (1831–1894), Russian painter
Noel Gay (1898–1954), English composer of popular music
Paul Gay (born 1968), French opera singer
Peter Gay (1923–2015), German-born U.S. historian
Randall Gay (born 1982), American football player, currently playing for the New Orleans Saints
Robert Gay (MP) (died 1738), English MP
Robert C. Gay (born 1951), a general authority of The Church of Jesus Christ of Latter-day Saints
Robert J. Gay, American palaeontologist
Robert Marie Gay (1927–2016), Canadian-born Ugandan Roman Catholic prelate, Bishop of Kabale (1996–2003)
Ross Gay, American poet and professor
Rudy Gay (born 1986), American professional basketball player, currently with the Sacramento Kings
Susan Elizabeth Gay, chronicler of the history of Old Falmouth
Tyson Gay (born 1982), American sprinter
William Gay (disambiguation), several people
Virginia Gay (born 1981), Australian actress
