Bellocq is a French surname. Notable people with the surname include:
Adolfo Bellocq (1899–1972), influential Argentine artist known for his lithographs E. J. Bellocq (1873–1949), American professional photographer Éric Bellocq (born 1962), French lutenist Franco Bellocq (born 1993), Argentine professional footballer Gabrielle Bellocq (1920–1999), French Neo-impressionist pastel artist Henri Bellocq (1884–1959), French footballer Louise Bellocq (1919–1999), 20th-century French woman of letters Pierre Bellocq (born 1926), French-American artist and horse racing cartoonist
See also Pueblo Bellocq, a village and municipality in Entre Ríos Province in north-eastern Argentina