| Official Name: | Umm al Ahrar |
| Other Name: | Umm al Aḩrār |
| Settlement Type: | Town |
| Pushpin Map: | Libya |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location in Libya |
| Subdivision Type: | Country |
| Subdivision Name: |  Libya |
| Subdivision Type1: | Region |
| Subdivision Name1: | Fezzan |
| Subdivision Type2: | District |
| Subdivision Name2: | Sabha |
| Unit Pref: | Imperial |
| Population Blank1 Title: | Ethnicities |
| Population Blank2 Title: | Religions |
| Timezone: | EET |
| Utc Offset: | +2 |
| Coordinates: | 27.5167°N 15°W |
| Elevation Footnotes: | [1] |
| Elevation M: | 370 |
Umm al Ahrar or Umm al Aḩrār (ar|أم الأحرار)[2] is a Saharan desert oasis town in the Fezzan region of southwest Libya.[3]