Armistead is both a surname and a masculine given name. Notable people with the name include:
Surname:
Bill Armistead (born 1944), American politician from Alabama
George Armistead (1780–1818), American military officer who served as the commander of Fort McHenry during the Battle of Baltimore in the War of 1812
James Armistead, American slave and spy in the American Revolution
Lewis Addison Armistead, Confederate Army general
Samuel G. Armistead (1927–2013), American ethnographer, linguist, folklorist, historian and Hispanist
Walker Keith Armistead, United States Army brigadier general
Given name:
Armistead Burt U.S. Representative from South Carolina from 1843 to 1853
Armistead Mason Dobie, legal educator and federal judge
Armistead Maupin, American writer
Armistead Burwell Smith IV, American musician, member of Pinback
Armistead (d. 1844), slave of US President John Tyler who was killed in the USS Princeton disaster
