| Official Name: | Ahermoumou |
| Other Name: | Ribate El Kheir |
| Native Name: | أهرمومو |
| Settlement Type: | Town |
| Pushpin Map: | Morocco |
| Pushpin Label Position: | bottom |
| Pushpin Mapsize: | 300 |
| Pushpin Map Caption: | Location in Morocco |
| Subdivision Type: | Country |
| Subdivision Name: |  Morocco |
| Subdivision Name1: | Fès-Meknès |
| Subdivision Type2: | Province |
| Subdivision Name2: | Sefrou Province |
| Unit Pref: | Imperial |
| Population As Of: | 2004 |
| Population Total: | 12654 |
| Utc Offset: | +0 |
| Timezone Dst: | WEST |
| Utc Offset Dst: | +1 |
| Coordinates: | 33.8184°N -4.4106°W |
| Elevation M: | 1250 |
Ahermoumou (Arabic: أهرمومو), known officially as Ribate El Kheir (Arabic: رباط الخير), is a town in Sefrou Province, Fès-Meknès, Morocco. According to the 2004 Moroccan census it had a population of 12,654.[1]
Ahermoumou is notable for housing the Royal Military Training Academy (formerly the Non-Commissioned Officers School of Ahermoumou), whose commander and cadets were implicated in the 1971 Moroccan coup attempt. Following the unsuccessful coup, King Hassan II officially renamed the town Ribate El Kheir; both names, however, remain in use.