NII

NII may refer to:

• Nauchno - issledowatelski institute, the State Scientific Research Institute of the Soviet Union
• NII Holdings, Latin American mobile operator
• Kokuritsu Jōhōgaku Kenkyujo (English National Institute of Informatics ), Japanese Research Institute of computer science

Nii called:

• Ek Nii, a spoken language in Papua New Guinea

Nii is the surname of the following persons:

• Daiji Nii (born 1973 ), Japanese football player
• Sekinari Nii ( born 1943 ), Japanese politician

• Disambiguation
• Abbreviation