| Abbreviation | Definition |
|---|---|
| JRA | Junk Rig Association |
| JRAA | Japan Reuse Affairs Association |
| JRAA | Jones Riverside Airport Association |
| JRBA | Jackson Road Business Association |
| JRBA | James River Baptist Association |
| JRBA | James River Bluegrass Association |
| JRBA | Jharkhand Roll Ball Association |
| JRCA | Japan Road Contractors Association |
| JRCA | Japan Rord Contractors Association |
| JRCA | Joint Residential Construction Association |
| JRCA | Junior Rodeo Cowboys Association |
| JRSA | Justice Research and Statistics Association |
| JRTBA | Jack Russell Terrier Breeders Association (now Parson Russell Terrier Association of America) |
| JSA | Japan Sumo Association |
| JSA | Jewish Student Association |
| JSA | JIBS Student Association |
| JSA | Junior Sailing Association |
| JSA | Justice Studies Association |
| JSAC | Japan Studies Association of Canada |
| JSACA | Japan Smoking Articles Corporate Association |