Othonoi Othonoi Othonoi (, also rendered as Othoni) is a small Greek island in the Ionian Sea, located northwest of Corfu, and is the westernmost point of Greece. Othonoi is the largest of the Diapontia Islands. It is a former community of the Ionian Islands. Since the 2011 local government reform it is part of the municipality of Corfu, of which it is a municipal unit. The municipal unit has an area of 10.078 km and population of 392 (2011). In the 19th century the island was the capital of the Diapontia Islands municipality, which also included nearby islands of Ereikoussa,
Ionian Islands to the Ionian Islands Region except for Kythera, which belongs to the Attica Region. The seven islands are; from north to south: The six northern islands are off the west coast of Greece, in the Ionian Sea. The seventh island, Kythira, is off the southern tip of the Peloponnese, the southern part of the Greek mainland. Kythira is not part of the region of the Ionian Islands, as it is included in the region of Attica. In Ancient Greek the adjective "Ionios" () was used as an epithet for the sea between Epirus and Italy in which the Ionian Islands