Iardanos (Greek: Ιάρδανος) is a former municipality in Elis, West Greece, Greece.

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

[3] Its seat of administration was the village Vounargo.

Iardanos is enclosed by the municipal units of Amaliada to the north, and Pyrgos to the south.

The municipal unit Iardanos is subdivided into the following communities (constituent villages in brackets):