Hetrick is a surname. Notable people with the surname include:
Emery Hetrick (1931–1987), American psychiatrist Glenn Hetrick (born 1972), actor and special effects makeup artist/designer from Pennsylvania Jennifer Hetrick (born 1958), American actress John W. Hetrick (1918–1999), American engineer credited for inventing the airbag Keith Hetrick (born 1988), American songwriter and record producer Michele Hetrick, American make-up artist Robert Hetrick (1769–1849), poet and blacksmith from Dalmellington, Ayrshire, Scotland W. Brady Hetrick (1907–1999), former Democratic member of the Pennsylvania House of Representatives
See also Hetrick-Martin Institute, New York City based non-profit organization devoted to LGBTQ youth HTRK