- Source: Grego (surname)
Grego is a surname. Notable people with the surname include:
Antun Grego (born 1940), Croatian sailor
Egidio Grego (1894–1917), Italian aviator
Jim Grego (born 1955), American politician
João Grego, 15th century Portuguese explorer
Joseph Grego (1843–1908), English art collector
Laura Grego, American physicist
Melania Grego (born 1973), Italian water polo player