Alaplı is a town situated in the Black Sea region of Turkey. It serves as the administrative seat of the Alaplı District within Zonguldak Province.
Geographically, it is positioned as the westernmost town in Zonguldak Province, located approximately 15 km (9.3 mi) south of Karadeniz Ereğli. As of 2022, the town has a population of 20,777.