| Osman Çağatay Durmaz | |
| Fullname: | Osman Çağatay Durmaz |
| Birth Date: | 9 September 1996 |
| Birth Place: | Eskişehir, Turkey |
| Weight: | 86kg (190lb) |
| Spike: | 360cm (140inches) |
| Block: | 350cm (140inches) |
| Position: | Middle-blocker |
| Nationalteam: | Turkey |
Osman Çağatay Durmaz (born 9 September 1996) is a Turkish volleyball player.
On 14 June 2023, he signed a new 2-year contract with Galatasaray HDI Sigorta.[1]