| Official Name: | Tambolaka (Waitabula) |
| Pushpin Map: | Indonesia Sumba#Indonesia |
| Pushpin Map Caption: | Location in Indonesia |
| Pushpin Mapsize: | 300 |
| Pushpin Label Position: | top |
| Subdivision Type: | Country |
| Subdivision Name: | Indonesia |
| Subdivision Type1: | Region |
| Subdivision Name1: | Lesser Sunda Islands |
| Subdivision Type2: | Province |
| Subdivision Name2: | East Nusa Tenggara |
| Subdivision Type3: | Regency |
| Subdivision Name3: | Southwest Sumba |
| Area Total Km2: | 98.95 |
| Population As Of: | 2020 Census |
| Population Note: | [1] |
| Population Total: | 35790 |
| Population Density Metro Km2: | 361.7 |
| Timezone: | WITA / UTC |
| Utc Offset: | +8 |
| Coordinates: | -9.4333°N 133°W |
Kota Tambolaka (Tambolaka city) is the administrative capital of the Southwest Sumba Regency (Kabupaten Sumba Barat Daya), on the island of Sumba, East Nusa Tenggara province of Indonesia. Tambolaka was in fact the name of the airport, the real former name of the city being Waitabula (sometimes written Weetabula).
Tambolaka has a tropical savanna climate (Köppen Aw) with moderate to little rainfall from May to November and heavy rainfall from December to April.
The town is served by Tambolaka Airport.