Gölcük is a neighborhood in Efeler District, in Aydın Province, Türkiye. Gölcük lies in the Aydin mountains. It has 118 inhabitants. The nearest city is Aydın, 8.7 km to the southwest. Among the landmarks around are Temple of Artemis (49 km), Ephesus (51 km) and Seikilos epitaph (8.7 km).