| Official Name: | Gnanhoun |
| Settlement Type: | Arrondissement and town |
| Pushpin Map Caption: | Location in Benin |
| Subdivision Type: | Country |
| Subdivision Name: |  Benin |
| Subdivision Type1: | Department |
| Subdivision Name1: | Borgou Department |
| Subdivision Type2: | Commune |
| Subdivision Name2: | Nikki |
| Unit Pref: | Imperial |
| Population As Of: | 2013 |
| Population Total: | 1823 |
| Timezone: | WAT |
| Utc Offset: | +1 |
Gnanhoun is a town in the Biro arrondissement in the Borgou Department of Benin. It is an administrative division under the jurisdiction of the commune of Nikki. According to the population census in 2013, the village had a total population of 1,823.[1] [2] [3]