| Mile 91, Sierra Leone | |
| Pushpin Map: | Sierra Leone |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location in Sierra Leone |
| Subdivision Type: | Country |
| Subdivision Name: | Sierra Leone |
| Subdivision Type1: | Province |
| Subdivision Name1: | Northern Province |
| Subdivision Type2: | District |
| Subdivision Name2: | Tonkolili District |
| Leader Title: | City council charman |
| Leader Name: | mohamed sankoh |
| Leader Title1: | local chief |
| Leader Name1: | pa limami local title name |
| Leader Title2: | head of local chiefs |
| Leader Name2: | mohamed sankoh |
| Unit Pref: | Imperial |
| Population Blank1 Title: | Ethnicities |
| Population Blank2 Title: | Religions |
| Timezone: | GMT |
| Utc Offset: | 0 |
| Coordinates: | 8.4667°N -12.2167°W |
Mile 91 is a major trading town in Tonkolili District in Northern Province of Sierra Leone. As its name suggests, Mile 91 is exactly 91 miles from Freetown and is located on the main highway linking Freetown, to Makeni and Bo. The population of the town is ethnically diverse, although the Temne people make up the majority of the population.