Çiğli Turkish: [ˈtʃiːli] is a municipality and district of İzmir Province, Turkey. Its area is 139 km2, and its population is 214,065 (2022). It covers the northwestern part of the agglomeration of İzmir, around the mouth of the river Gediz, across the Gulf of İzmir from the main city. The Gediz delta is an Important Bird Area but is under threat from urbanization. IAOIZ, the Izmir Atatürk Organized Industrial Zone, is a significant economic hub and there is a major air force base.

İzmir Province is a province and metropolitan municipality of Turkey in western Anatolia, situated along the Aegean coast. Its capital is the city of İzmir, which is in itself composed of the province's central 11 districts out of 30 in total. To the west, it is surrounded by the Aegean Sea, and it encloses the Gulf of Izmir. Its area is 11,891 square kilometres, and its population is 4,462,056 (2022). Neighboring provinces are Balıkesir to the north, Manisa to the east, and Aydın to the south. The traffic code of the province is 35.