Gallo is a surname. Notable people with the surname include:
Agostino Gallo (1499–1570), Italian agronomist
American gangsters:
Albert Gallo, one of the "Gallo brothers"
Joe Gallo, one of the "Gallo brothers"
Joseph N. Gallo, consiglieri of the Gambino crime family
Larry Gallo, one of the "Gallo brothers"
Anna Maria Gallo, better known as Mary Frances of the Five Wounds of Jesus, Italian saint
Andrea Gallo (1928–2013), Italian Roman Catholic priest
Anthony Gallo, guitarist
Armando Gallo, Italian journalist and photographer
Bill Gallo, cartoonist and columnist for the New York Daily News
Carla Gallo, American actress
Dean Gallo, American congressman
Diego Gallo, Uruguayan swimmer
Domenico Gallo, Italian composer and violinist whose works are sometimes mistakenly attributed to Pergolesi.
E & J Gallo Winery, founded in 1933
Ernest Gallo, co-founder
Julio Gallo, co-founder
Joseph Edward Gallo, brother of Ernest and Julio Gallo
Inigo Gallo, Swiss actor and playwright
Fortune Gallo, impresario of the San Carlo Opera Company
George Gallo, American film producer
Mario Gallo, Italian born Argentine film director
Max Gallo, French author who wrote a series of novels based on the life of Napoleon I of France
Marielle Gallo, French Member of the European Parliament
Melissa Gallo, now uses the name Melissa Fumero
Robert Gallo, retrovirus expert famous for his co-discovery of HIV, the virus that causes AIDS
Vincent Gallo, film director
Samuel Sarfati, physician to Pope Julius II, known as Gallo
Fictional characters:
Cordelia Gallo, a character in the Japanese light novel series Gosick
