Ackman is a surname. Notable people with the surname include:
Alyson Ackman (born 1993), Canadian swimmer Amy Vera Ackman, also known as Mother Giovanni (1886–1966), Australian hospital administrator Bill Ackman (born 1966), American hedge fund manager Margaret Ackman, Guyanese politician Robert Ackman (1927–2013), Canadian chemistry professor
See also Go! Go! Ackman, a manga series