| Official Name: | Kamonyi District |
| Settlement Type: | District |
| Subdivision Type: | Country |
| Subdivision Name: | Rwanda |
| Subdivision Type2: | Province |
| Subdivision Name2: | Southern |
| Seat Type: | Capital |
| Seat: | Gihinga |
| Area Total Km2: | 655.4 |
| Population As Of: | 2022 census |
| Population Footnotes: | [1] |
| Population Total: | 450849 |
| Population Urban: | 142520 |
| Population Rural: | 308329 |
| Population Density Km2: | auto |
Kamonyi is a district (akarere) in Southern Province, Rwanda. Its capital is Kamonyi, also sometimes known as Gihinga.
Kamonyi district is divided into 12 sectors (imirenge): Gacurabwenge, Karama, Kayenzi, Kayumbu, Mugina, Musambira, Ngamba, Nyamiyaga, Nyarubaka, Rugalika, Rukoma and Runda.