| Sumba Timur Regency | |
|---|---|
| — Regency — | |
| Location of Sumba Timur Regency in Lesser Sunda Islands | |
| Country | Indonesia |
| Region | Lesser Sunda Islands |
| Province | East Nusa Tenggara |
| Island | Sumba |
| Capital | Waingapu |
| Area | |
| • Total | 2,702.9 sq mi (7,000.5 km2) |
| Population (2008) | |
| • Total | 228,351 |
East Sumba Regency (Indonesian: Kabupaten Sumba Timur) is one of the four regencies which divide the island of Sumba, East Nusa Tenggara Province, Indonesia. Waingapu is the capital of East Sumba Regency. The population of East Sumba Regency is 190,214 (2002).