NII
- Bituah Leumi
- N-II (rocket)
- N2 (disambiguation)
- NII Holdings
- National Information Infrastructure
- National Institute of Immunology (disambiguation)
- National Institute of Informatics
- Negara Islam Indonesia
- Net Interest Income
- Nii Addo Quaynor
- Nii Addy
- Nii Akuetteh
- Nii Allotey Odunton
- Nii Amaa Ollennu
- Nii Amugi II
- Nii Armah Ashitey
- Nii Kwaku Sowah
- Nii Lamptey
- Nii Nortey Ashong
- Nii Okaidja Adamafio
- Nii Okaija Adamafio
- Nii Okwei Kinka Dowuona VI
- Nii Parkes
- Nii Plange
- Nii Quaynor
- Nii Station (Hyōgo)
- Nii Station (Mie)
- Nii Tackie Tawiah III
- Nii Welbeck
- Nii language
- Non-Intrusive Inspection
- Nuclear Installations Inspectorate
- Science and technology in the Soviet Union