Gash
- Full Name: Gash
- Species: Klingon
- Gender: Male
- By 2266: Weapons officer, Klingon Defense Force; IKS d'k tahg (TOS Novel: Errand of Vengeance: The Edge of the Sword)
- March 15, 2266: Ground troops, Klingon Defense Force; IKS d'k tahg (TOS Novel: Errand of Vengeance: The Edge of the Sword)