Aroi (Greek: Αρόη, also Aroe)^[1] is a neighbourhood in the city of Patras, Achaea, Greece. It is built in a hilly area about 2 miles (3.2 km) inland, near the ancient acropolis, which is known as the Castle of Aroi.

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Aroi in ancient Greek means "fertile land". The district is one of the most populous in the area.^{[citation needed]}