Elliniko-Argyroupoli () is a municipality in the South Athens regional unit, Attica, Greece. The seat of the municipality is the town Argyroupoli. The municipality has an area of 15.355 km<sup>2</sup>.
The municipality EllinikoâÂÂArgyroupoli was formed at the 2011 local government reform by the merger of the following 2 former municipalities, that became municipal units: