Haldeman may refer to:
- Samuel Stehman Haldeman (1812–1880), U.S. naturalist and philologist
- Walter Newman Haldeman (1821–1902), U.S. newspaper publisher, businessman, Major League Baseball owner
- Jacob S. Haldeman (1823–1889), U.S. banker, politician and ambassador
- Richard Jacobs Haldeman (1831–1886), U.S. politician
- E. Haldeman-Julius (1889–1951), and Anna Marcet Haldeman (died 1941), U.S. publishers
- H. R. Haldeman (1926–1993), U.S. politician; White House Chief of Staff (1969-1973) under President Richard Nixon
- Jack C. Haldeman II (1941–2002), U.S. biologist and science fiction writer
- Joe Haldeman (born 1943), U.S. science fiction writer
- Charles E. Haldeman (born 1948), U.S. entrepreneur
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