Agia Eirini (Greek: Άγια Ειρήνη, for Saint Irene) is a community in the municipal unit of Eleios-Pronnoi in the southeastern part of the island of Cephalonia, Greece. It is situated in an inland valley, at about 90 m elevation. It is 2 km south of Tzanata, 3 km southeast of Xenopoulo, 3 km north of Pastra and 4 km southwest of Poros. It is located on the road connecting Poros with Argostoli.

Agia Eirini Άγια Ειρήνη
Community
Agia Eirini
Coordinates: 38°7.3′N 20°45.1′E / 38.1217°N 20.7517°E / 38.1217; 20.7517
Country	Greece
Administrative region	Ionian Islands
Regional unit	Cephalonia
Municipality	Argostoli
Municipal unit	Eleios-Pronnoi
Population  (2021)[1]
• Community	294
Time zone	UTC+2 (EET)
• Summer (DST)	UTC+3 (EEST)