Aetos (Greek: Αετός meaning "eagle") is a village and a former municipality in Messenia, Peloponnese, Greece.

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

[2] The municipal unit has an area of 94.850 km2.

[3] In 2021 its population was 249 for the village and 1,540 for the municipal unit.

[4] The municipal unit Aetos is subdivided into the following communities (constituent villages in brackets): This Peloponnese location article is a stub.