Gölcük may refer to:
Places in Turkey Gölcük, Acıpayam Gölcük, Aydın, a village in Aydın District, Aydın Province Gölcük, Bolu, a village in Bolu District, Bolu Province Gölcük, Çardak Gölcük, Dursunbey, a village Gölcük, Kestel Gölcük, İzmir, a town in Ödemiş district, İzmir Province Gölcük, Kocaeli, a district center in Kocaeli Province Gölcük, Kumluca, a village in Kumluca District, Antalya Province Gölcük, Mudurnu, a village in Mudumu District, Bolu Province
Other uses Gölcük Barbaros Hayrettin Lisesi, a public high school in Gölcük, Kocaeli, Turkey Gölcük Naval Shipyard, a naval shipyard of the Turkish Navy Gölcük Naval Base, the main base of the Turkish Navy