| Bum | |
| 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: | Southern Province |
| Subdivision Type2: | District |
| Subdivision Name2: | Bonthe District |
| Unit Pref: | Imperial |
| Population As Of: | 2004 |
| Population Total: | 18,827 |
| Timezone: | GMT |
| Utc Offset: | +0 |
Bum is a chiefdom in Bonthe District of Sierra Leone. As of 2004 it had a population of 18,827.[1]