| Ernesto Mario Chaves | |
| Fullname: | Ernesto Mario Chaves |
| Strokes: | Backstroke |
| Birth Date: | 8 June 1929 |
| Birth Place: | Florentino Ameghino, Buenos Aires, Argentina |
| Death Place: | Buenos Aires, Argentina |
Ernesto Mario Chaves (8 June 1929 - 24 August 2007)[1] was an Argentine Olimpic swimmer and Latin American TV actor who competed at the 1948 Summer Olympics in the 100 m backstroke reaching the final and finishing 4th.[2]