| Acronym | Definition |
|---|
| NISR➣NGSSoftware Insight Security Research |
| NISR➣National Institute for Safety Research (Maryland) |
| NISR➣National Institute of Statistics of Rwanda (est. 2005) |
| NISR➣National Institute for Sports Reform |
| NISR➣Nuclear Industries Security Regulations (UK) |
| NISR➣New Individualised Staff Record (Higher Education Statistics Agency) |
| NISR➣Netherlands Institute for Spatial Research (est. 2002) |