Skliros (Greek: Σκληρός) is a village in the municipality of Oichalia, Messenia, southern Greece.

[2] After a number of years, the village was given as a personal manor or "Pronoia" (Greek: πρόνοια, meaning "care" or "forethought") to Romanos Skleros, the son of the Byzantine General, Bardas Skleros, where he settled with his family.

Romanos had married the sister of Emperor Constantine VII.

[3] During the Frankish occupation, the area of the village may have belonged to the Barony of Karytaina, or was on its borders.

[4] During Constantine Paleologos campaign against the Franks, the castle was used by the inhabitants of Sklirou.