Kastania (Greek: Καστανιά) is a former municipality in the Trikala regional unit, Thessaly, Greece.

Since the 2011 local government reform it is part of the municipality Meteora, of which it is a municipal unit.

[2] The municipal unit has an area of 149.808 km2.

The village Kastanea is home to Vlachs.

This Thessaly location article is a stub.