| Acronym | Definition |
|---|
| RRB➣Railroad Retirement Board |
| RRB➣Railway Recruitment Board (India) |
| RRB➣Resources Review Board |
| RRB➣Research Resources Board |
| RRB➣Resource Recovery Board |
| RRB➣Release Receive Buffer |
| RRB➣Randy Rogers Band |
| RRB➣Regional Rural Bank (India) |
| RRB➣Ronald Reagan Building (Washington, DC) |
| RRB➣Real Return Bonds |
| RRB➣Radio Regulations Board |
| RRB➣Railroad Business (mail) |
| RRB➣Radio Rythme Bleu (French radio station; New Caledonia) |
| RRB➣Requirements Review Board |
| RRB➣Resource Related Billing |
| RRB➣Rowdy Ruff Boys |
| RRB➣Regular Reenlistment Bonus |
| RRB➣Radio Russkij Berlin (German radio station) |
| RRB➣Risk Review Board |
| RRB➣Rigid Rocker Bottom (shoe sole) |
| RRB➣Restricted Repetitive Behavior (neurobiology) |
| RRB➣Regional Rural Banks, India |
| RRB➣Reduced Readiness Battery |
| RRB➣Ready Review Board |
| RRB➣Radar Reflective Balloon |
| RRB➣Reverse Routing Bit |
| RRB➣Rural Regional Bank (India) |