Artemida (Greek: Αρτέμιδα, older name Loutsa, Greek: Λούτσα) is a seaside resort town in East Attica, Greece. Since the 2011 local government reform it is part of the municipality Spata-Artemida, of which it is a municipal unit.
Artemida is located on the Aegean Sea coast, in the eastern part of the Attica peninsula. It lies 5 km south of Rafina, 8 km east of Spata, 9 km north of Porto Rafti and 25 km east of Athens city centre. Greek National Road 85 (Rafina - Lavrio) passes through the town.