| Abbreviations | Meaning |
 | RHDV-FRG | Rabbit Hemorrhagic Disease Virus FRG |
 | RHDV-SD | Rabbit Hemorrhagic Disease Virus SD |
 | RHDV-V351 | Rabbit Hemorrhagic Disease Virus V351 |
 | RIOMV | Rio Mamore Virus |
 | RIOSV | Rio Secundo Virus |
 | RKV | Rabbit Kidney Vacuolating [virus] |
 | RLV | Rauscher Leukemia Virus |
 | RMLV | Rauscher Murine Leukemia Virus |
 | RMULV | Rauscher Murine Leukemia Virus |
 | ROCV | Rocio Virus |
 | RPV | Raccoon Parvovirus; Rinderpest Virus; Right Portal Vein; Right Pulmonary Vein |
 | RR | Ross River [virus] |
 | RRV | Ross River Virus |
 | RRV-TV | Rhesus Rotavirus Vaccine-tetravalent |
 | RRV-TV | Tetravalent Rhesus-human Rotavirus Vaccine |
 | RS | Respiratory Syncytial (virus) |
 | RS | Respiratory Syncytial [virus] |
 | RSTV | Rost Island Virus |
 | RSV | Respiratory Syncytial Virus |
 | RSV | Rous Sarcoma Virus |
 | RSV | Regurgitant Stroke Volume; Respiratory Syncytial Virus; Right Subclavian Vein; Rous Sarcoma Virus |
 | RSV-PR-C | Rous Sarcoma Virus (Prague C) |
 | RSV-SR-B | Rous Sarcoma Virus (Schmidt-Ruppin B) |
 | RSV-SR-D | Rous Sarcoma Virus (Schmidt-Ruppin D) |
 | RTPV | Radiation Therapy Planning And Verification; RT Parvovirus |
 | RTV | Resistance-to-voltage [converter]; Rhinotracheitis Virus; Room Temperature Vulcanization |
 | RUBV | Rubella Virus |
 | RV | Ranavirus |
 | RV | Rat Virus |
 | RV | Rauscher Virus |
 | RV | Reovirus |
 | RV | Retrovirus |
 | RV | Rhabdovirus |
 | RV | Rhinovirus |
 | RV | Rotavirus |
 | RV | Rubella Virus |
 | RV-A | Rotavirus A |
 | RV-B | Rotavirus B |
 | RV-C | Rotavirus C |
 | RV-D | Rotavirus D |
 | RV-E | Rotavirus E |
 | RV-F | Rotavirus F |
 | RV-G | Rotavirus G |
 | RVA | Recombinant Virus Assay |
 | RVFV | Rift Valley Fever Virus |
 | RVV | Right Ventricular Volume; Rubella Vaccine-like Virus; Russell Viper Venom |
 | RVV | Recombinant Vaccinia Virus |
 | S-TRSV | Substrate Of Tobacco Ringspot Virus |
 | SA | Sim-ian Adenovirus |
 | SABOV | Sabo Virus |