| Official Name: | Merixen |
| Settlement Type: | Village |
| Pushpin Map: | Algeria |
| Pushpin Label Position: | bottom |
| Pushpin Mapsize: | 300 |
| Subdivision Type: | Country |
| Subdivision Name: |  Algeria |
| Subdivision Type1: | Province |
| Subdivision Name1: | Illizi Province |
| Subdivision Type2: | District |
| Subdivision Name2: | In Amenas District |
| Subdivision Type3: | Commune |
| Subdivision Name3: | Debdeb[1] |
| Unit Pref: | Metric |
| Utc Offset: | +1 |
| Coordinates: | 30.1436°N 9.3222°W |
| Elevation M: | 314 |
Merixen (also written Mariksene[2]) is a village in the commune of Debdeb,[1] in In Amenas District, Illizi Province, Algeria, located on the southern edge of the Grand Erg Oriental.
Neighbouring towns and cities