Oinoi () is a village in Boeotia, Greece. Since the 2011 local government reform it is part of the municipality Tanagra, and the municipal unit of Schimatari. Population 855 (2021). It is situated in the wide valley of the river Asopos, at 6 km from the South Euboean Gulf coast. It is situated about 3 km southeast of Schimatari, 26 km east of Thebes and 41 km north-northwest of Athens.
The A1 motorway (Athens - Lamia - Thessaloniki) passes northeast of Oinoi.
The village is served by Oinoi railway station, just west of the town on the PiraeusâÂÂPlaty line and Athens-Chalcis line (the OinoiâÂÂChalcis line), with frequent service in both directions.
The Hellenic Air Force's Tanagra Airport lies to the northwest.