Omplos (Greek: Ομπλός) is a mountain in Achaea, Greece. It rises steeply from the coastal plains around Patras to 926 m elevation. It is separated from the higher mountain Panachaikos by the valley of the river Glafkos. The summit is 2 km west of the village Petroto, 4 km east of Kallithea, 4 km southeast of Saravali and 10 km southeast of Patras city centre.The Omplos Monastery is situated on the mountain, at about 740 m elevation.