K'Vagh
- Full Name: K'Vagh
- Species: Klingon (QuchHa')
- Gender: Male
- Son: Marab
- By November 2154: General, Klingon Defense Force; IKS Haj (ENT: "Affliction", "Divergence")
- Supervisor of Qu'vat virus development process (ENT: "Affliction", "Divergence")
- Mid-2165: Made bid for chancellorship in selection process following death of M'Rek (ENT Novel: Live by the Code)
- Bid scuttled through false association with nonexistant QuchHa' insurrection by Councillor B'orel (ENT Novel: Live by the Code)