Haist is a surname of German origin. Notable people with this surname include:
Jane Haist (1948–2022), Canadian discus thrower and shotputter Josef Haist (1894–1950), Austrian footballer Karl Haist (born 1938), German sailor Marie Haist (1925–2021), American woman who was a friend of Zach Galifianakis and featured in the documentary Queen Mimi