Coordinates: 37°22′43″N 28°02′22″E / 37.378564°N 28.039427°E Lagina (Greek: Λαγίνα) is an ancient cult site of important archaeological and tourist value dating from the Carian period and extended under the Seleucid kings that is situated in southwestern Turkey (adjacent to Turgut, a municipality in the Muğla Province) and which is famous for its Hekate Sanctuary. The site is situated at 9 kilometers distance from the Yatağan-Milas highway, served by an asphalt road bifurcating shortly after the Yatağan Thermal Power Plant when coming from Yatağan.
The small town of Turgut itself was until recently named Leyne, a name that is still used among the locals and in the region, thus echoing its name in antiquity.
Recent studies have shown that the site had been inhabited and/or employed in an uninterrupted manner during a time span stretching back to the Bronze Age. Seleucid kings conducted a considerable reconstruction effort in the sacred ground of Lagina and transformed it into a foremost religious center of its time, with the nearby (at a distance of 11 kilometers) site of Stratonikeia becoming the administrative center. The two sites (Lagina and Stratonkeia) were connected to each other in antiquity by a holy path.