Crispin is a masculine given name. Notable people with the name include:
Sir Crispin Agnew, 11th Baronet (born 1944), Advocate, officer of arms former explorer and Chief of the Name and Arms of Agnew
Crispin Beltran (1933–2008), Filipino politician and a labor leader
Crispin Blunt (born 1960), the Conservative Member of Parliament for the English constituency of Reigate
Crispin Bonham-Carter (born 1969), English actor
Crispin Castro Monroy (born 1936), Mexican municipal president of Santa Cruz Atizapán from January 1970 to January 1972
Crispin Conroy (born 1963), Australian diplomat
Crispin Duenas (born 1986), Canadian Olympic recurve archer
Crispin Freeman (born 1972), American voice actor
Crispin Glover (born 1964), American film actor
Crispin S. Gregoire (born in 1956), Permanent Representative to the United Nations for the Commonwealth of Dominica
Crispin Grey-Johnson (born 1946), Gambian political figure
Crispin Gray, guitarist and songwriter for musical groups Queen Adreena and The Dogbones
Crispin Hunt, English lead singer of the Britpop group Longpigs
Crispin Nash-Williams (1932–2001), English and Canadian mathematician
Crispin Salvador (1937–2002), Filipino writer and intellectual known for his novels, essays and short-fiction
Crispin Sanchez (1925–2008), South Texas trailblazer in the fields of Mexican-American education and sports
Crispin Sartwell (born 1958), American philosophy professor, anarchist and journalist
Crispin Shumina, member of the Pan-African Parliament from Zambia
Crispin Tickell (born 1930), English diplomat, environmentalist and academic
Crispin van den Broeck (1523–1591), Flemish painter
Crispin Wright (born 1942), English philosopher
Fictional characters:
Crispin Cronk, character in the Harry Potter novels by J.K. Rowling
