Nagekeo Regency (sometimes written as Nagé Kéo) is a regency on the island of Flores in East Nusa Tenggara province of Indonesia, comprising the Nage people in the south and the Keo in the north (in Aesesa and Wolowae Districts).

[1] The regency was established on 2 January 2007 by separation of the former eastern districts from Ngada Regency; it has its administrative seat (capital) in the town of Mbay on the north coast of Flores.

[1] The table also includes the locations of the district administrative centres, the number of administrative villages in each district (totaling 97 rural desa and 16 urban kelurahan), and its postal codes.

In August 2011, Due to long dry season at the location, Australian saltmaker Cheetam Saltworks Ltd. is considering opening a plant in Nagekeo Regency with investment $15 million on a 1,500-hectare plot plus $6 million to build a port and would employ 1,600 people.

The island is one hour by traditional fisherman boat from Maropokot small port.