Sageika (Greek: Σαγέικα, also: Σαγαίικα - Sagaiika) is a village and a community in the municipal unit of Movri, western Achaea, Greece. It is located in the plains between the Movri hills and the Gulf of Patras. It is 3 km west of Kareika, 6 km east of Metochi, 9 km southwest of Kato Achaia and 28 km southwest of Patras. The Greek National Road 9 (Patras - Pyrgos) runs through the village.

Sageika was the seat of the municipality of Movri, named for the Movri hills south of the village. The municipality was created under the Kapodistrias reform in 1998. The community Sageika consists of the villages Sageika, Apostoloi, Bouteika, Vrachneika, Gerouseika and Stathmos.