Alissos (Greek: Αλισσός) is a village and a community in the municipal unit of Dymi, Achaea, Greece.

The community consists of the villages Alissos, Kamenitsa, Paralia Alissou and Profitis Elissaios.

Alissos was known as Lisarea or Lysaria (Greek: Λισσαρέα or Λησαρέα; French: la Lisarée) during the period of Frankish rule in the late Middle Ages.

According to the Chronicle of the Morea, it was a fief of the Barony of Akova, held in the late 1270s by Margaret of Lisarea (or Jeanne), a cousin of Walter of Rosières, baron of Akova.

The fief was then inherited by their daughter, Helen, and her husband, Vilain II of Aulnay, Baron of Arcadia.