General Haynes may refer to:
Caleb V. Haynes (1895–1966), U.S. Air Force major general Fred E. Haynes Jr. (1921–2010), U.S. Marine Corps major general Hezekiah Haynes (died 1693), English Civil War major general Ira Allen Haynes (1859–1955), U.S. Army brigadier general Loyal M. Haynes (fl. 1940s–1950s), U.S. Army brigadier general Thomas J. Haynes (fl. 1970s–2000s), Rhode Island Air National Guard major general