The Vilayet of Janina, Yanya or Ioannina was a first-level administrative division (vilayet) of the Ottoman Empire, established in 1867. In the late 19th century, it reportedly had an area of 18,320 square kilometres (7,070 sq mi). It was created by merging the Pashalik of Yanina and the Pashalik of Berat with the sanjaks of Janina, Berat, Ergiri, Preveze, Tırhala and Kesriye. Kesriye was later demoted to kaza and bounded to Monastir Vilayet and Tırhala was given to Greece in 1881.

Northern Epirus is a term used to refer to those parts of the historical region of Epirus, in the western Balkans, which today are part of Albania. The term is used mostly by Greeks and is associated with the existence of a substantial ethnic Greek minority in the region. It also has connotations with irredentist political claims on the territory on the grounds that it was held by Greece and in 1914 was declared an independent state by the local Greeks against annexation to the newly founded Albanian principality. The term is typically rejected by most Albanians for its irredentist associations.