Ano Kastritsi (Greek: Άνω Καστρίτσι) is a village in the municipal unit of Rio, Achaea, Greece.

It is situated at about 500 m elevation in the forested northwestern foothills of the Panachaiko, 6 km southeast of Rio town centre, Kato Kastritsi is 4 km to the northwest.

It is known for the views to the east part of Patras, the Corinthian Gulf, the Rio-Antirio Bridge, and for its taverns and food.

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