Langevin is a French surname. Notable people with the surname include:
Adélard Langevin (1855–1915), Canadian Roman Catholic archbishop
Charles Langevin (1789–1869), Canadian businessman
Chris Langevin (1959–), Canadian ice hockey player
Dave Langevin (1954–), American ice hockey player
Dominique Langevin (born 1947), French researcher in physical chemistry.
Hector-Louis Langevin (1826–1906), Canadian politician
Hélène Langevin-Joliot (1927–), French nuclear physicist, Frederic Joliot and Irène Curie's daughter
James Langevin (1964–), American politician
Jean Langevin (1821–1892), Canadian Roman Catholic bishop
Luce Langevin-Dubus (1899-2002), French physicist and biologist
Michel Langevin, Canadian drummer, founding member of Voivod
Paul Langevin (1872–1946), French physicist, chemist and philosopher of science
Paul-Gilbert Langevin (1933-1986), French musicologist and physicist
Paul Langevin (politician), Canadian politician
Robert Langevin, Canadian flautist
Ronald Langevin (born 1940), Canadian psychologist
