| Native Name Lang: | ar |
| Type: | city |
| Mapsize: | 180px |
| Pushpin Map: | Algeria |
| Subdivision Type: | Country |
| Subdivision Name: |  Algeria |
| Subdivision Type1: | Province |
| Subdivision Type2: | District |
| Seat Type: | District seat |
| Unit Pref: | Metric |
| Population Density Km2: | auto |
| Timezone1: | CET |
| Utc Offset1: | +01 |
| Postal Code Type: | Postal code |
| Blank Name Sec1: | ONS code |
Kef Lahmar (Arabic: كاف الاحمر, lit. red foothill) is a municipality in El Bayadh Province, Algeria. It is part of the district of Rogassa and has a population of 5.245, which gives it 7 seats in the PMA. Its municipal code is 3212. There is a hot spring there.