Sabu Raijua Regency is one of the regencies in the province of East Nusa Tenggara, Indonesia. This regency has an area of 477.40 km which includes two main islands in the Sawu Sea, namely Sabu Island and Raijua Island, plus uninhabited Rai Dana Island. Sabu Island is the largest and is the center of government with its capital in West Sabu district, while Raijua Island is smaller and located to the west of Sabu Island. The regency was established by Indonesia's Minister of Home Affairs, Mardiyanto, on 29 October 2008, when it was partitioned from Kupang Regency. The population was 72,960 at the 2010 census, and 89,327 at the 2020 Census; the official estimate as at mid 2023 was 93,323.

Sabu Raijua Regency offers the charm of stunning natural tourism, especially with the beauty of its pristine white sand beaches. One of the main destinations is Napae Beach on Sabu Island, which is famous for its clear sea water and beautiful coral reefs, ideal for snorkeling and diving. In addition, Bukit Ledeae presents a stunning view of dry hills combined with the expanse of blue ocean. Sabu Raijua also has rich marine biodiversity, making it a perfect place for nature lovers and adventurers.

The regency is divided into six districts (kecamatan), tabulated below with their areas and their populations at the 2010 Census and 2020 Census, together with the official estimates as at mid 2023. Note all districts are on Sabu Island except for Raijua District, which encompasses Rai Jua or Raijua Island (36.08 km) and uninhabited Rai Dana Island (0.89 km) much further to the west. The table also includes the location of the district administrative centres, the number of administrative villages in each district (totaling 58 rural desa and 5 urban kelurahan), and its post code.

Kode Wilayah	Name of District (kecamatan)	English name	Area in km	Pop'n Census 2010	Pop'n Census 2020	Pop'n Estimate mid 2023	Admin centre	No. of villages	Post code
53.20.06	Raijua	Raijua Island	36.97	7,671	8,950	9,679	Ledeunu	5	85393
53.20.05	Hawu Mehara	(Southwest Savu)	65.09	15,361	18,664	19,992	Tana Jawa	12	85391
53.20.04	Sabu Liae	(South Savu)	68.39	8,847	10,718	10,742	Eilogu	8	85396
53.20.01	Sabu Barat	West Savu	175.42	26,463	33,225	34,289	Seba	10	85395
53.20.02	Sabu Tengah	Central Savu	66.85	7,165	8,833	9,130	Eimadake	10	85392
53.20.03	Sabu Timur	East Savu	64.68	7,453	8,937	9,491	Bolou	18	85394
	Totals		477.40	72,960	89,327	93,323	Menia	63

Notes: (a) including 2 kelurahan - Ledeunu and Ledeke. (b) including one kelurahan - Mebba. (c) including 2 kelurahan - Bolou and Limaggu.