Okamura Island (岡村島, Okamura-jima) is a small island in the Inland Sea of Japan.

Administratively, it is part of the city of Imabari, Ehime Prefecture.

The island is famous for mikan and butterflies.

Access is from Imabari by fast or slow ferry boat, or by road from Kure.

It can also be accessed by road from the city of Kure, Hiroshima Prefecture through the Akinada Islands Connecting Bridges.