Mathraki (, older form: Μαθράκιον) is an island and a former community of the
Ionian Islands,
Greece. It is belongs to
Diapontia Islands. Since the 2011 local government reform it is part of the municipality
Corfu, of which it is a municipal unit. Population 329 (2011). Mathraki is a 45-minute boat ride off the coast of Corfu (4 NM from Cape Arilas). It has three restaurants that double as general stores, villas and "rooms to let". Mathraki is a quiet island that manages to stay clear of tourists except for the occasional hikers that brave the rocky coastline. The municipal unit includes the three nearby islets Diakopo, Diaplo and Tracheia.