| Koubia Prefecture | |
| Settlement Type: | Prefecture |
| Mapsize: | 300px |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location in Guinea |
| Subdivision Type: | Country |
| Subdivision Name: |  Guinea |
| Subdivision Type1: | Region |
| Subdivision Name1: | Labé Region |
| Subdivision Type2: | Capital |
| Subdivision Name2: | Koubia |
| Unit Pref: | Imperial |
| Area Total Km2: | 2800 |
| Population Total: | 114000 |
| Population Blank1 Title: | Ethnicities |
| Timezone: | Guinea Standard Time |
| Utc Offset: | +0 |
Koubia is a prefecture located in the Labé Region of Guinea in the Fouta Djallon mountains. Fulas are the majority ethnic group in the region with Fula (Pular) as the primary language. The capital is Koubia. The prefecture covers an area of 2,800 km.² and has an estimated population of 114,000.
The prefecture is divided administratively into 6 sub-prefectures: