Oxeia is a
Greek island in the
Ionian Sea. As of 2011, it had no resident population. It is the chief island in the southern group (the Ouniades) of the
Echinades, part of the
Ionian Islands. Oxeia possesses the highest point in the Echinades, . It is situated near the mouth of the river
Acheloos, off the coast of
Aetolia-Acarnania. The island is around in length and its width is approximately . The
Battle of Lepanto took place near the island in 1571.