Grimson is a surname which may refer to:
Allan Grimson (born 1958), British murderer Eric Grimson (born 1953), Canadian-born computer scientist, professor at Massachusetts Institute of Technology George Grimson (1915–1944), Royal Air Force bomber crewman Gudmunder Grimson (1878–1965), American lawyer, Justice of North Dakota Supreme Court Jane Grimson (born 1949), Scottish-born computer engineer, Pro-Chancellor of University of Dublin Matthew Grimson (1968–2018), Canadian musician Stu Grimson (born 1965), Canadian professional ice hockey player Grimson, a family of musicians that flourished in London from 1870 Grimson, Swedish/American rock band
See also Gimson, surname