Arachthos (Greek: Άραχθος) is a former municipality in the Arta regional unit, Epirus, Greece.

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

[3] It is situated along the lower course of the river Arachthos, south of Arta.

Near Arachthos, there is the static inverter plant of HVDC Italy-Greece.

This Epirus location article is a stub.