| Acronym | Definition |
|---|
| RCBL➣Representative Church Body Library (Church of Ireland) |
| RCBL➣Rockingham County Baseball League (est. 1924) |
| RCBL➣Royal City Baseball League (Canada) |
| RCBL➣Reynolds Corners Branch Library (Toledo, OH) |
| RCBL➣Rebecca Caudill Branch Library (Cumberland, KY) |