The Gediz Delta is the river delta at the confluence of the Gediz River with the Gulf of İzmir, in İzmir Province in western Turkey.

It is a 14,900 ha area of land that occupies coastal parts of Foça, Menemen, and Çiğli districts.

[2] It is one of the largest areas of coastal wetlands in Turkey and has a biodiversity of plants and birds.

[2] It is a Ramsar site since 1998 and an Important Bird Area since 2000.

[4] Remains of the former Ionian town of Leucae is located on the delta.