The IKS M'Char was a Klingon Bird-of-Prey that was in service with the Klingon Defense Force in the late 24th century.
Under the command of Commander Kaybok, the M'Char was one of several ships assigned to search civilian vessels departing the Bajoran system for Changeling infiltrators in 2372. One of the ships it stopped was the SS Xhosa, but Kaybok was forced to release the Xhosa when the M'Char was confronted by the USS Defiant. General Martok had Kaybok executed for not following his orders. (DS9: "The Way of the Warrior")