George Chapman (ca. 1559–1634), English dramatist, translator, and poet

Johnny Appleseed or John Chapman (1774–1847), an American pioneer orchardist and Swedenborgian Christian missionary

Mark David Chapman (born 1955), assassinated former Beatle John Lennon

Duane "The Dog" Chapman (born 1953), a bounty hunter who lives in Hawaii

Herbert Chapman (1878–1934), an English football player and manager

Mike Chapman Australian-born record producer and songwriter

Colin Chapman (1928–1982, automotive engineer, designer, and racing director

Chapman University, a private university located in Orange County, California

Ray Chapman (1891–1920), a shortstop for the American League Cleveland baseball team

Chapman Township, Snyder County, Pennsylvania

Chapman Stick, a musical instrument

Eddie Chapman, spy

Tracy Chapman (born 1964), an American singer-songwriter

Doug Chapman, stunt performer, actor and stunt coordinator

Robert Chapman (cricketer) (born 1972), English first-class cricketer in the 1990s

Roger Chapman (born 1942), an English rock singer

Sydney Chapman (astronomer) (1888–1970), a British astronomer and geophysicist

Sydney John Chapman (economist) (1871–1951), was a British economist and civil servant

Beth Nielsen Chapman (born 1958), an American singer and songwriter

James Chapman (author) (born 1955), an American novelist and publisher

Chapman, Kansas

Chapman, Pennsylvania

Ben Chapman (politician) (born 1940), a British politician and former civil servant

Mike & Matt Chapman, the duo responsible for the creation of the Homestar Runner series of animated cartoons

John Herbert Chapman (1921–1979), a Canadian space researcher from London, Ontario

Jim Chapman (born 1945), an American politician, was a Democratic Congressman representing Texas

Grant Chapman (born 1949), an Australian politician

Chapman (crater), a lunar crater that lies just beyond the northwest rim of the Moon

Chapman Township, Clinton County, Pennsylvania

Chapman, Nebraska

Frank Chapman (1864–1945), an American ornithologist

Chapman, Maine

Fredrik Henrik af Chapman (1721–1808), Swedish naval ship architect

Percy Chapman (1900–1961), English cricketer

Katie Chapman (born 1982), English football player

Chapman-Kolmogorov equation, a mathematical identity relating the joint probability distributions of different sets of coordinates on a stochastic process

Chapman code, a superset of the ISO 3166-2:GB and BS 6879 codes identifying administrative divisions in the United Kingdom

Sir Robert Chapman, 1st Baronet (1880–1963), British soldier and Conservative Member of Parliament 1931–1935

Reuben Chapman (1799–1882), an American lawyer and politician

Stanley Chapman (born 1925), a British architect, designer, translator and writer

Chapman, Australian Capital Territory

Sydney Chapman (politician) (born 1935), an English politician and architect

Chapman function, associated with the absorption integral of the Earth's atmosphere

Robert Chapman:

Fred Chapman (1872–1957), the youngest professional baseball player in the United States when he debuted on July 22, 1887, for the Philadelphia Athletics

John Chapman (footballer), sixth manager of Manchester United football team

Chapman strut, an automobile suspension device

Tony Chapman (living), musician, early member of The Rolling Stones

Allan Chapman, British historian of science

A Chapman (plural chapmen) was an itinerant seller in Britain.

Alvan Wentworth Chapman, American botanist

Anne Chapman, Franco-American ethnologist

Emmett Chapman, a jazz musician best known as the inventor of the musical instrument Chapman Stick

Graham Chapman (1941–1989), a British comedian and writer, member of Monty Python

Harold Chapman (born 1927), an English photographer, especially noted for pictures taken at the Beat Hotel

Shire of Chapman Valley in Western Australia