Sabu Raijua Regency is one of the regencies in the province of East Nusa Tenggara, Indonesia. It comprises the three Savu Islands, lying between Sumba and Rote Island in the Savu Sea. The regency was established by Indonesia's Minister of Home Affairs, Mardiyanto, on 29 October 2008, having formerly being part of Kupang Regency. The population was 72,960 at the 2010 census.
The regency is divided into six districts (kecamatan), tabulated below with their 2010 Census population.