| Abbreviation | Definition |
|---|---|
| RVCS | Rock Valley Christian School |
| RVM | Religious Order of the Virgin Mary, Congregation |
| RWB | Revised Webster's Bible |
| RWC | Reaching the World for Christ |
| RWCA | Rhema Word Christian Academy |
| RWE | Religious Witness for the Earth |
| RWF | Rural Workers Fellowship |
| RWO | Religion and World Order |
| RX | Religious Xperience |
| RYC | Reborn Youth Christians |
| RYC | Revolution Youth Church |
| RYG | Redeemer Youth Group |
| RYM | Real Young Men |
| RYM | Redeemer Youth Ministry |
| RYM | Rock Youth Ministries |
| RYM | Rockhouse Youth Ministries |
| RYS | Religious Youth Service |
| RZA | Religious Zionists of America |
| RZIM | Ravi Zacharias International Ministries |
| RZY | Reform Zionist Youth |