| Abbreviation | Definition |
|---|---|
| NRAC | National Recall Alert Center |
| NRBA | New Rochelle Bar Association |
| NRBC | National Reining Breeders Classic |
| NRBO | Nile River Basin Organization |
| NRC | National Recycling Coalition |
| NRC | Nonprofit Resiliency Committee |
| NRC | Norwegian Refugee Council |
| NRCCM | National Resource Center on Child Maltreatment |
| NRCI | National Recycling Coalition, Inc. |
| NRDC | Natural Resources Defense Council |
| NRF | Neighborhood Renewal Fund |
| NRF | Neurosciences Research Foundation |
| NRH | Newark Renaissance House, Inc. |
| NRH | Newark Rennaissance House, Inc. |
| NRHS | National Railway Historical Society |
| NRLA | Nizam Rastra Library Association |
| NRLC | National Right to Life Committee |
| NRLETF | National Right to Life Educational Trust Fund |
| NRM | New Road Map Foundation |
| NRN | National Relief Network |