| Southeastern Anatolia Region | |
| Native Name: | Güneydoğu Anadolu Bölgesi |
| Native Name Lang: | tr |
| Settlement Type: | Region |
| Subdivision Type: | Country |
| Subdivision Name: | Turkey |
| Area Total Km2: | 59,176 |
| Population Total: | 8,576,391 |
| Population Density Km2: | auto |
| Demographics Type1: | GDP |
| Demographics1 Footnotes: | [1] |
| Demographics1 Title1: | Total |
| Demographics1 Info1: | US$ 44.745 billion (2022) |
| Demographics1 Title2: | Per capita |
| Demographics1 Info2: | US$ 5,220 (2022) |
The Southeastern Anatolia Region (Turkish: Güneydoğu Anadolu Bölgesi) is a geographical region of Turkey. The most populous city in the region is Gaziantep. Other big cities are Şanlıurfa, Diyarbakır, Mardin and Adıyaman.
It is bordered by the Mediterranean Region to the west, the Eastern Anatolia Region to the north, Syria to the south, and Iraq to the southeast.
See main article: List of ecoregions in Turkey.
Provinces that are entirely in the Southeastern Anatolia Region:
Provinces that are mostly in the Southeastern Anatolia Region:
Provinces that are partially in the Southeastern Anatolia Region:
Southeastern Anatolia Region has an area of 59,176 km and is the second smallest region of Turkey. Southeastern Anatolia Region has a semi-arid continental climate with very hot and dry summers and cold and often snowy winters.