Pyllini (Greek: Πυλλήνη or Πυλήνη) is a former municipality in Aetolia-Acarnania, West Greece, Greece. Since the 2011 local government reform it is part of the municipality Nafpaktia, of which it is a municipal unit. Population 2,000 (2001). The seat of the municipality was in Simos. The municipal unit Pyllini is subdivided into the following communities (constituent villages in brackets):
