Rote Ndao Regency is a regency in East Nusa Tenggara province of Indonesia, consisting primarily of the island of Rote, situated south-west of the western tip of West Timor with an area of 978.54 km2, together with minor offshore islands including Usu (19.4 km2), Ndana (13.83 km2), Ndao, Landu and Nuse; the total area including the minor offshore islands is 1,249.35 km2.

The regency seat is in the village of Ba'a (or Baadale), which is situated in Lobalain District.

This goal was finally realized in 2002 after central government was pressurised by around 300 cultural figures from 19 traditional regions in the area.

[6] Ba'a Port is also connected to president Joko Widodo's sea toll program route TL13 which aimed to reduce development and economic gap between isolated regions.

[12] The only fiber optic service provider in the regency is IndiHome, which is state-owned under Telkomsel.

Food processing industry also have established presence in the region and employed around 5,000 workers as of 2019.

The fastest growing sector was natural gas and energy with increase of 18% on the same year.

[14] The regency is surrounded by water, bordering the Savu Sea to the north, the Indian Ocean to the south and west, and the Pukuafu Strait to the east.

[5] The topography varies from flat make up 35% of its territory to hills around 25%, from 0 to 1,500 metres above sea level.

Notes: (a) including 36 offshore islands, the largest being Ndana, Landu and Nusa Manuk.