| Nihattin Koca | |
| Nationality: | Turkish |
| Sport: | Cross-country skiing |
| Birth Date: | 1 January 1966 |
| Birth Place: | Sarıkamış, Kars, Turkey |
Nihattin Koca (born 1 January 1966) is a Turkish cross-country skier. He competed in the men's 15 kilometre event at the 1984 Winter Olympics.[1]