Nei

Nei is the surname of the following persons:

Iivo Nei ( born 1931 ), Estonian chess master
Masatoshi Nei ( born 1931 ), Japanese geneticist and evolutionary biologist
Wada Yasushi, Sino- Japanese reading of Wada Nei (1787-1840), Japanese mathematician

NEI is the abbreviation for

National Eye Institute, an institute of the National Institutes of Health with a focus on Ophthalmology
Netherlands East Indies, commonly used abbreviation for the Dutch East Indies ( now Indonesia )
Nouvelles Equipes International, a European umbrella organization of bourgeois- conservative parties and other organizations (1947-1998)
Noise Equivalent Irradiance, a measurement method for determining the noise sensitivity of detectors.