Joliot is a surname. Notable people with the surname include:
Frédéric Joliot-Curie (1900–1958), French radiochemist and Nobel laureate
Hélène Langevin-Joliot (born 1927), French nuclear physicist
Irène Joliot-Curie (1897–1956), French radiochemist and Nobel laureate, daughter of Marie Skłodowska-Curie and Pierre Curie
Pierre Joliot (born 1932), French biologist and researcher for the CNRS