| Abbreviation | Definition |
|---|---|
| RBB | Residential BroadBand |
| RBB | Reuters Business Briefing |
| RBI | Radio Berlin International |
| RBL | Realtime Black List |
| RBL | Resource By Line |
| RBL | Review of Biblical Literature |
| RBN | Real Broadcasting Network |
| RBP | Regular Baptist Press |
| RBR | Radio Business Report |
| RBR | Rectal Broadcast Reinsertion |
| RBR | Road Bike Rider |
| RBR | Romance Book Readers |
| RBS | Reader Behavior Score |
| RBW | Reviewer's Book Watch |
| RBW | Russia Business Watch |
| RC | Regional Colloquial |
| RCA | Record Company Alliance |
| RCF | Readers Comment Form |
| RCJ | Rabbit Creek Journal |
| RCJ | Radio Communaute Juive |