NII

Nii or NII may refer to:

Nii language, spoken in the highlands of Papua New Guinea
Nii Station (Hyōgo), a train station in Asago, Hyōgo Prefecture, Japan
Nii Station (Mie), a railway station in Iga, Mie Prefecture, Japan
NII Holdings, a wireless telecommunications company with operations in Latin America, based in Reston, Virginia

Initialisms

National Information Infrastructure, a telecommunications policy buzzword, coined under the Clinton Administration in the United States
National Institute of Immunology (disambiguation)
National Institute of Informatics, a Japanese research institute for the advancement of studies in informatics
National Insurance Institute of Israel (Bituah Leumi)
Nautschno-issledovatelskiy institut ("science and research institute"), part of the Russian-language name of a large number of Soviet and post-Soviet research institutions
Necessary International Initiative, a Trotskyist political grouping formed in 1976
Net Interest Income, a financial term
Non-Intrusive Inspection of cargo containers
Nuclear Installations Inspectorate, part of the UK Office for Nuclear Regulation