| Abbreviation | Definition |
|---|---|
| RPEC | Republican Parish Executive Committee |
| RPI | Republican Initiative |
| RPIC | Republication Political Items Collectors |
| RPII | Republican Party of Iowa Intel |
| RPN | Republican Party of Nigeria |
| RPOC | Republican Party of Ozaukee County |
| RPPC | Russian Public Policy Center |
| RPS | Religion Politics Society |
| RPT | Republican Party of Texas |
| RPV | Republican Party of Virginia |
| RPVB | Republican Party of Virginia Beach |
| RQ | Radical Queer |
| RR | Radical Right |
| RRC | Roman Republican Coinage |
| RRP | Akhil Bharatiya Ram Rajya Parishad |
| RS | Resource Security |
| RS | Revolutionary Soldier |
| RSC | Republican Study Committee |
| RSCC | Republican Senate Campaign Committee |
| RSCC | Republican Senatorial Campaign Committee |