T'Vak
- Full name: T'Vak
- Species: Romulan
- Gender: Male
- By July 2155: Centurion, Fifth Legion, Romulan Guard
- Serving aboard captured IKS Mup'chIch as part of Romulan telecapture tests (ENT Novel: Kobayashi Maru, Beneath the Raptor's Wing)
- By November 2155: Centurion, First Legion, Romulan Guard; IRW Dhivael (ENT Novel: Beneath the Raptor's Wing)