| Language | Population | Bloc | Family | Cluster | Band | |
|---|---|---|---|---|---|---|
| ● Oromo, West Central | 17,025,380 | Afro-Asiatic | Cushitic | East Cushitic | Oromo | |
| ● Oromo, Borana-Arsi-Guji | 9,631,800 | Afro-Asiatic | Cushitic | East Cushitic | Oromo | |
| ● Oromo, Eastern | 5,456,000 | Afro-Asiatic | Cushitic | East Cushitic | Oromo | |
| ● Orma | 74,400 | Afro-Asiatic | Cushitic | East Cushitic | Oromo | |
| ● Waata | 14,100 | Afro-Asiatic | Cushitic | East Cushitic | Oromo |