| Official Name: | Zag |
| Native Name: | الزاك ⵥⴰⴳ |
| Native Name Lang: | ar, tzm |
| Other Name: | az-Zāk |
| Settlement Type: | Town |
| Pushpin Map: | Morocco#Africa |
| Pushpin Relief: | 1 |
| Subdivision Type: | Country |
| Subdivision Name: | Morocco |
| Subdivision Type1: | Region |
| Subdivision Name1: | Guelmim-Oued Noun |
| Subdivision Type2: | Province |
| Subdivision Name2: | Assa-Zag Province |
| Leader Title: | Mayor |
| Population As Of: | 2004 |
| Population Footnotes: | [1] |
| Population Total: | 7,751 |
| Population Density Km2: | auto |
| Population Density Sq Mi: | auto |
| Coordinates: | 28.0226°N -9.2953°W |
| Elevation M: | 405 |
| Elevation Ft: | 3854 |
| Postal Code Type: | ZIP codes |
Zag (pronounced Ezzag) (Arabic: الزاك (az-Zāq)), is a town in southern Morocco, in the Assa-Zag province of the Guelmim-Oued Noun region. It lies to the south of the town of Assa and is the last settlement on the road south from there until Western Sahara. According to the 2004 census Zag had a population of 7,751, the second-highest in the province behind Assa and the eighth-highest in the region.[1]