Acheloos (Greek: Αχελώος) is a former municipality in the Karditsa regional unit, Thessaly, Greece.

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

[2] The municipal unit has an area of 87.430 km2.

[3] It is named after the Acheloos River.

This Thessaly location article is a stub.