| Antun Grego | |
| Nationality: | Croatian |
| Sport: | Sailing |
| Birth Date: | 8 December 1940 |
| Birth Place: | Omišalj, Yugoslavia |
Antun Grego (born 8 December 1940) is a Croatian sailor. He competed at the 1968 Summer Olympics and the 1972 Summer Olympics.[1] In the Snipe class, Grego was the European champion in 1966, runner-up in 1968, and bronze medallist in the 1967 World Championship.