Gillo is a given name and surname.
Notable people with the given name include: Gillo Dorfles (1910–2018), Italian art critic, painter, and philosopher Gillo Pontecorvo (1919–2006), Italian filmmaker
Notable people with the surname include: Hank Gillo (1894–1948), American football player
Notable people with the nickname include: Michele Frangilli (1976-), Italian archer