| Abbreviations | Meaning |
 | TUAV | Turuna Virus |
 | TUCV | Tucunduba Virus |
 | TUHV | Tupaiid Herpesvirus |
 | TULV | Tula Virus |
 | TUNV | Tunis Virus |
 | TUPV | Tupaia Virus |
 | TURV | Transurethral Resection Of Valves; Turlock Virus |
 | TV | Box Turtle Virus |
 | TV | Teschovirus |
 | TV | Tickborne Virus |
 | TV | Tigre Virus |
 | TV | Torovirus |
 | TV | Tumor Virus |
 | TVD | Transmissible Virus Dementia; Triple Vessel Disease |
 | TVH | Turkey Virus Hepatitis |
 | TVH | Total Vaginal Hysterectomy; Turkey Virus Hepatitis |
 | TVTV | Trivittatus Virus |
 | TVV | Trichomonas Vaginalis Virus |
 | TVX | Tumor Virus X |
 | TYMV | Turnip Yellow Mosaic Virus |
 | TYUV | Tyuleniy Virus |
 | UDRV | Ulcerative Disease Rhabdovirus |
 | UGDV | Uasin Gishu Disease Virus |
 | UGSV | Uganda S Virus |
 | UMAV | Umatilla Virus |
 | UMBV | Umbre Virus |
 | UNAV | Una Virus |
 | UPOV | Upolu Virus |
 | UR2SV | UR2 Sarcoma Virus |
 | URUV | Urucuri Virus |
 | USUV | Usutu Virus |
 | UTIV | Utinga Virus |
 | UUKV | Uukuniemi Virus |
 | UV | Ultraviolet; Umbilical Vein; Uppsala Virus; Ureterovesical; Urinary Volume |
 | UVC | Ullucus Virus C; Ultraviolet C; Umbilical Venous Catheter |
 | UVV | Utive Virus |
 | V | Virus |
 | VA RNA | Virus-associated Ribonucleic Acid [RNA] |
 | VAC | Ventriculoatrial Conduction; Vincristine, Doxorubicin, And Cyclophosphamide; Virus Capsid Antigen |
 | VACV | Vaccinia Virus |
 | VAD | Venous Access Device; Ventricular Assist Device; Vinblastine And Dexamethasone; Virus-adjusting Diluent; Vitamin A Deficiency |
 | VAEV | Vearoy Virus |
 | VAHS | Virus-associated Hemophagocytic Syndrome |
 | VARV | Variola Virus |
 | VB | Virus Buffer |
 | VC | Virus C |
 | VCV | Vein Chlorosis Virus; Vein Clearing Virus |
 | VDI | Venous Distensibility Index; Virus Defective Interfering [particle] |
 | VEEV | Venezuelan Equine Encephalitis Virus |
 | VELV | Vellore Virus |