Valerianos () is a village and a community in the island of Cephalonia, Greece. The community includes the villages Atsoupades and Plateies. It is situated at the southeastern foot of Mount Ainos, at about 190 m elevation. It is 0.5 km northwest of Chionata, 3 km southwest of Pastra, 9 km southwest of Poros and 23 km southeast of Argostoli. Valerianos was devastated by the 1953 Ionian earthquake.