The IKS T'Acog (IKC-7750) was a D7-class, specifically of the K't'inga-class, Klingon battle cruiser starship in Imperial Klingon Defense Force service in the 24th century. (ST reference: The Star Trek Encyclopedia; Decipher RPG module: Starships)
T'Acog was sent in pursuit of a Talarian freighter, the Batris, in 2364, in seeking renegade Klingon nationals who had taken refuge aboard the ship. After a battle, the T'Acog was destroyed due to treachery and attack by the Klingons who had commandeered the freighter. (TNG episode: "Heart of Glory")
- The T'Acog was not seen, nor was its class mentioned, in canon. Specifications about the vessel's class and registry were made in the latter two reference sources.