Kempton is both a surname and a given name. Notable people with the name include:
Surname:
Adam Kempton (born 1957) Australian politician
David Kempton (born 1956), Australian politician
George Kempton (1871–1945), Australian politician
Gloria Kempton (1951–1991) American author
Greta Kempton (1901–1991) Austrian-born American artist
Jenny Twitchell Kempton (1835–1921), American classical contralto
Murray Kempton (1917–1997) American journalist
Rez Kempton, British actor
Tim Kempton (born 1964) American professional basketball player
Given name:
Kempton Bunton (1900–1976) British disabled pensioner who allegedly stole a Francisco Goya painting
Kempton Greene (1890–1966) American silent film actor
Fictional characters:
Dane Kempton, elderly poet in the 1903 novel The Kempton-Wace Letters by Jack London and Anna Strunsky
Jack Kempton, fictional character in Best Friends Together
