Agia Triada (Greek: Αγία Τριάδα, meaning the Holy Trinity) is a village in the northern part of the municipal unit of Lasiona, Olympia, Elis, Greece. It is situated near the river Pineios, which forms the border with Achaea here. It is located 7 km northwest of Antroni, 7 km east of Simopoulo, 9 km south of Stavrodromi and 24 km north of Olympia. The Greek National Road 33 (Patras - Tripoli) runs through the village.

Agia Triada Αγία Τριάδα
Community
Agia Triada
Coordinates: 37°51.7′N 21°38.8′E / 37.8617°N 21.6467°E / 37.8617; 21.6467
Country	Greece
Administrative region	West Greece
Regional unit	Elis
Municipality	Archaia Olympia
Municipal unit	Lasiona
Elevation	460 m (1,510 ft)
Population  (2021)[1]
• Community	220
Time zone	UTC+2 (EET)
• Summer (DST)	UTC+3 (EEST)
Postal code	270 69
Area code(s)	026220