Leman is a surname. Notable people with the surname include:
Albert Leman (1915–1998), Russian composer
Bob Leman (1922–2006), American science fiction and horror author
Dennis Leman, English footballer
Gérard Leman (1851–1920), Belgian general
J Leman (born 1985), American football linebacker
John Leman (died 1632), English tradesman
Kevin Leman, American psychologist and author
Loren Leman (born 1950), American politician
Martin Leman (born 1934), British artist
Richard Leman (born 1959), English field hockey player,
Ulrich Leman (1885–1988), German painter
Father (Pere) Jules Leman, founder of Blackrock College secondary school in Dublin
