Clay is both a surname and a given name. Notable people with the name include:
Surname:
Adam Clay (disambiguation), multiple people
Alfred Borron Clay (1831–1868), artist
Bryan Clay (born 1980), gold medalist in the decathlon at the 2008 Summer Olympics in Beijing
Cassius Clay, the original name of famed boxer Muhammad Ali (1942–2016)
Cassius Marcellus Clay (politician) (1810–1903), American politician, abolitionist
Cassius Marcellus Clay, Sr. (1912–1990), American painter and musician
Charles Clay (American football) (born 1989), American football fullback/tight end
Craig Clay (born 1992), English footballer
Edward Sneyd Clay (c. 1768–1846), British naval officer
Edward Clay (born 1945), British diplomat
Eric Clay (1922–2007), British rugby league referee
Frederic Clay (1838-1889), British composer
Grady Clay (1916–2013), American journalist
Henry Clay (1777–1852), leading American statesman and orator
James Clay (disambiguation), multiple people
John Clay (disambiguation), multiple people
Lacy Clay (born 1956), U.S. House Representative
Lucius D. Clay (1897–1978), American general and military governor
Meilani Clay (born 1988), American poetry slam champion
Otis Clay (1942–2016), American R&B and soul singer
Philippe Clay (1927–2007), French singer
Rudolph M. Clay (1936–2013), American politician
Given name:
Clay Aiken (born 1978), popular music singer
Clay Buchholz (born 1984), Major League Baseball pitcher for the Boston Red Sox
Clay Cook (born 1978), guitarist, keyboardist, mandolinist, steel guitarist, and vocalist in Zac Brown Band
Clay Hensley (born 1979), professional baseball player
Clay Higgins (born 1961), American politician
Clay Martin Croker (1962–2016), Voice actor and animator
Clay S. Jenkinson (born 1955), Rhodes Scholar and popular historical reenacto
Clay Matthews, Sr. (born 1928), former offensive tackle for the San Francisco 49ers
Clay Matthews, Jr. (born 1956), former linebacker for the Cleveland Browns and Atlanta Falcons, son of former
Clay Matthews III (born 1986), current linebacker for the Green Bay Packers, son of former
Clay Regazzoni (1939–2006), Swiss racing car driver
Fictional characters:
Clay Bailey, a character in the animated television series Xiaolin Showdown
Clay Danvers,a character on Bitten
Clay Morrow, a character on Sons of Anarchy
Clay (Pokémon), a character of the Pokémon universe
Clay Simons, a character in Grand Theft Auto: The Lost and Damned
Faceas Clay, an antagonist from the Strider Manga and NES Game
Clay Terran, a character from the series Ace Attorney
