Gölcük is a neighborhood in Ula District, in Muğla Province, Türkiye. Gölcük lies at 709 m above sea level, in the Marçal Dağları mountains. It has 730 inhabitants. The nearest city is Muğla, 18.0 km to the northwest. Among the landmarks around are Kaunos (35 km), Cyllandus (11.1 km) and Stratonicea (47 km).