Aroania is a village and a former municipality in Achaea, West Greece, Greece. Since the 2011 local government reform it is part of the municipality Kalavryta, of which it is a municipal unit. The population is 2,551 (2001 census). The seat of administration was in the town Psofida. The municipality is named after the village and the mountain.

Aroania , also known as Chelmos (Χελμός, from South Slavic chlmo, summit), is a mountain range in Achaea, Peloponnese, Greece. At 2,355 m elevation, Aroania is the third highest mountain of the Peloponnese, after Taygetus and Kyllini, and the highest in Achaea. The largest town near the mountain is Kalavryta. The municipal unit Aroania took its name from the mountain.