NIRA
| Acronym | Definition |
|---|---|
| NIRA | National Institute for Research Advancement (Japan) |
| NIRA | National Intercollegiate Rodeo Association |
| NIRA | National Insurance Recruiters Association |
| NIRA | National Industrial Recovery Act of 1933 |
| NIRA | National Import Racing Association |
| NIRA | North American Industrial Representatives Association |
| NIRA | Navy Internal Relations Activity |
| NIRA | National Intelligence Reform Act of 2004 |
| NIRA | National Internet Registry of Afghanistan |