Haslem is a surname, a variant of Haslam, a surname originating in England. Notable people with the surname include:
Graeme Haslem (b. 1940), Australian rules footballer John Haslem (politician) (born 1939), Australian politician John Haslem (artist) (1808–1884), English china and enamel painter, and writer Thomas Haslem (fl. 1871), plaintiff in Haslem v. Lockwood Udonis Haslem (born 1980), American basketball player
See also Haslam (surname)