Triglia () is a former municipality in Chalkidiki, Greece. Since the 2011 local government reform it is part of the municipality Nea Propontida, of which it is a municipal unit. The municipal unit has an area of 121.959 km<sup>2</sup>. Population 5,581 (2021). The seat of the municipality was in Nea Triglia.
Triglia is twinned with: