Oinoi (Greek: Οινόη, alternative transliteration Inoi) is a village and a former community in the northern part of West Attica, Greece. Since the 2011 local government reform it is part of the municipality Mandra-Eidyllia, of which it is a municipal unit.
The ancient site Oenoe is located near the modern settlement of Oinoi. The Greek National Road 3 (Elefsina - Thiva) passes through Oinoi. Other smaller roads lead to Dervenochoria and Vilia. Oinoi is surrounded by forested mountains, including Pateras, Makri Oros (850 m (2,789 ft)) and Pastra (1,016 m (3,333 ft)). There are farmlands in the valley areas. Mandra is located about 25 km (16 mi) northwest of Athens, about 5 km (3 mi) north of Elefsina, ENE of Corinth and SSE of Thiva.