| NARSA | National Amateur Roller Skating Association 
| Others |
| NARSA | National Automotive Radiator Service Association
| Others |
| NARSA | Network on Antimicrobial Resistance in Staphylococcus Aureus
| Others |
| NARSA | North American Rangers Supporters Association
| Others |
| NARSA | North American Recreational Slinging Association
| Others |
| NARSA | North American Romanov Sheep Association
| Others |