Guelmim-Oued Noun is one of the twelve administrative regions of Morocco. The southeastern part of the region is located in Western Sahara, a territory that Morocco has occupied since 1975, and a small strip of land in this area is administered by the Sahrawi Arab Democratic Republic. The region as a whole covers an area of 46,108 km2 and had a population of 448,152 as of the 2024 Moroccan census. The capital of the region is Guelmim.