Gallikos (Greek: Γαλλικός) is a village and a former municipality in the Kilkis regional unit, Greece. Since the 2011 local government reform it is part of the municipality Kilkis, of which it is a municipal unit. The municipal unit has an area of 149.054 km2. Population 6,343 (2011). The seat of the municipality was in the village of Kampanis.