NRIS
| Acronym | Definition |
|---|---|
| NRIS | National Register Information System (US National Park Service) |
| NRIS | Natural Resource Information System |
| NRIS | Nomura Research Institute Singapore |
| NRIS | New Republic Intelligence Service (Star Wars) |
| NRIS | Nursing Research Initiative for Scotland |
| NRIS | National Registration and Inquiry System (various nations) |
| NRIS | NASA Research Information Service |
| NRIS | National Resource Inventory System (USDA) |