Aeolis (Ancient Greek: , Aiolís) or Aeolia (; , Aiolía) was an area that comprised the west and northwestern region of Asia Minor, mostly along the coast, and also several offshore islands (particularly Lesbos), where the Aeolian Greek city-states were located. Aeolis incorporated the southern parts of Mysia which bounded it to the north, Ionia to the south, and Lydia to the east.