| NRCA | National Railroad Contractors Association 
| Others |
| NRCA | National Reamer Collectors Association
| Others |
| NRCA | National Rehabilitation Counseling Association
| Others |
| NRCA | National Resource Center for Adoption
| Others |
| NRCA | National Roofing Contractors Association
| Others |
| NRCA | National Rugby Centre Amsterdam
| Others |
| NRCA | Natural Resource Condition Assessment
| Others |
| NRCA | Natural Resource Condition Assessments
| Others |
| NRCA | Natural Resources Conservation Academy
| Others |
| NRCA | Natural Resources Conservation Area
| Others |
| NRCA | Natural Resources Conservation Authority
| Others |
| NRCA | Nebraska Rod and Custom Association
| Others |
| NRCA | NET Recovery Care Association
| Others |
| NRCA | New River Community Action
| Others |
| NRCA | New Rochelle Council on the Arts
| Others |
| NRCA | Nobody Really Cares Anymore
| Others |
| NRCA | Nonconformance Report and Corrective Action
| Others |
| NRCA | North Raleigh Christian Academy
| Others |
| NRCA | North Ridge Citizens Association
| Others |
| NRCA | North River Christian Academy
| Others |
| NRCA | Northwest Ranch Cowboy Association
| Others |
| NRCA | Not Really Christian Academy
| Others |