| Sumba Barat Regency | |
|---|---|
| — Regency — | |
| Location of Sumba Barat Regency in East Nusa Tenggara | |
| Country | Indonesia |
| Region | Lesser Sunda Islands |
| Province | East Nusa Tenggara |
| Island | Sumba |
| Capital | Waikabubak |
| Area | |
| • Total | 284.7 sq mi (737.42 km2) |
| Population (2010) | |
| • Total | 111,023 |
| Website | http://www.sumbabaratkab.go.id/ |
West Sumba Regency (Indonesian: Kabupaten Sumba Barat) is a regency in East Nusa Tenggara province of Indonesia. Established in 1958,[1] the regency has its seat (capital) in Waikabubak. Its population is 111,023 in the 2010 decennial census.[2]