Crveni Otok (Red Island) is a twinned island in the Croatian part of the Adriatic Sea.
It is situated near Rovinj and connects the island of Sveti Andrija (Croatian for "Saint Andrew", Italian: Isola di Sant'Andrea) with neighbouring islet of Maškin [hr] with an embankment.
In the 6th century, Benedictines built a monastery on the island.
In 1809, the island was conquered by France, and in 1892 a cement and lime factory was built on the island using the church tower as a chimney.
This Istria County geography article is a stub.