Grego is a surname. Notable people with the surname include:
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Antun Grego (born 1940), Croatian sailor
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Egidio Grego (1894–1917), Italian aviator
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Jim Grego (born 1955), American politician
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João Grego, 15th century Portuguese explorer
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Joseph Grego (1843–1908), English art collector
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Laura Grego, American physicist
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Melania Grego
Melania Grego (born 19 June 1973 in Breno) is a female water polo forward from Italy, who won the gold medal with the Women's National Team at the 2004 Summer Olympics in Athens, Greece.
See also
* Italy women's Olympic water polo team records ...
(born 1973), Italian water polo player
{{surname, Grego