| Cornel Marin | |
| Fullname: | Corneliu Marin |
| Birth Date: | 19 January 1953 |
| Birth Place: | Bucharest, Romania |
| Height: | 177 cm |
| Weight: | 80 kg |
| Sport: | Fencing |
| Event: | Sabre |
| Club: | Viitorul Bucuresti (1967–72) CSA Steaua București (1972–85)[1] |
| Coach: | Lucian Glisca Dumitru Mustaţă |
| Show-Medals: | yes |
Corneliu "Cornel" Marin (born 19 January 1953) is a retired Romanian sabre fencer. He competed at the 1976, 1980 and 1984 Olympics and won team bronze medals in 1976 and 1984. He won three more team medals at the world championships in 1974–1977. In 1977, he was named Best Fencer of the Year in Romania.[1]
As a teenager Marin was trained as a fencer and jeweler. He eventually chose fencing as his profession, and worked as a fencing coach at CSA Steaua București after retiring from competitions in 1985.[1]