Kleinman is a common surname:
Arthur Kleinman (born 1941), American psychiatrist and medical anthropologist of China
Daniel Kleinman (born 1955), British computer graphics artist
Elly Kleinman (born 1952), American business executive and philanthropist
Fay Kleinman (born 1912), American painter
Geoffrey Kleinman (born 1970), editor of DVDTalk
Nathan Kleinman, an activist involved in multiple causes
Pablo Kleinman (born 1971), American journalist
Ralph E. Kleinman (1929–1998), American mathematician
Steven Kleinman, an officer in the United States Air Force Reserve
Yeshayahu (Shaike) Kleinman (1936–2007), Israeli artist