Nira
- Allium tuberosum
- Avenira
- Beit Yitzhak-Sha'ar Hefer
- NIRA Dynamics AB
- NIRA Intense Import Drag Racing
- National Identification and Registration Authority
- National Industrial Recovery Act of 1933
- National Institute for Research Advancement
- National Intercollegiate Rodeo Association
- National Intercollegiate Rugby Association
- Neera (given name)
- Nigeria Internet Registration Association
- Nira Dyn
- Nira Juanco
- Nira Radia
- Nira Radia tapes controversy
- Real Irish Republican Army
- Shivatkar (Nira)