The Savu Sea (or the Sawu Sea) (Indonesian: Laut Sawu, Portuguese: Mar de Savu, Tetum: Tasi Savu) is a small sea within Indonesia named for the island of Savu (Sawu) on its southern boundary. It is bounded by Savu and Raijua to the south, the islands of Rote and Timor (split between East Timor and Indonesia) to the east, Flores and the Alor archipelago to the north/northwest, and the island of Sumba to the west/northwest. Between these islands, it flows into the Indian Ocean to the south and west, the Flores Sea to the north, and the Banda Sea to the northeast.
The Savu Sea reaches about 3,500 metres (11,500 ft) in depth. It spans about 600 km from west to east, and 200 km from north to south. The largest city on the sea is Kupang, the capital of East Nusa Tenggaraprovince on the island of Timor, with about 450,000 inhabitants.
On the South. By a line from the Southwest point of Timor to the Northeast point of Roti, through this island to its Southwest point, thence a line to Poeloe Dana (10°49′S121°17′E / 10.817°S 121.283°E / -10.817; 121.283) and to Tanjong Ngoendjoe, the Southern extreme of Soemba and through this island to Tanjong Karosso, its Western point.