| Type: | municipality |
| Cumayeri | |
| Coordinates: | 40.8736°N 30.9508°W |
| Province: | Düzce |
| District: | Cumayeri |
| Leader Party: | MHP |
| Leader Name: | Mustafa Koloğlu |
| Population Total: | 10908 |
| Population As Of: | 2022 |
| Area Code: | 0380 |
| Blank1 Name: | Climate |
| Blank1 Info: | Cfb |
Cumayeri is a town in Düzce Province in the Black Sea region of Turkey. It is the seat of Cumayeri District.[1] Its population is 10,908 (2022).[2] The mayor is Mustafa Koloğlu (MHP), elected in 2019.[3]