The IKS T'Acog is a Klingon cruiser in service during the 24th century. In 2364, the T'Acog was sent to apprehend the Klingon criminals Korris, Konmel, and Kunivas, who had commandeered the Talarian freighter Batris. By feigning a power failure, the fugitives were able to lure the T'Acog into close range, and then destroy it with a barrage of merculite rockets when the cruiser lowered its shields to board the freighter. There were no survivors. (TNG: "Heart of Glory")
- The T'Acog was not shown onscreen, so its specific class is unknown. In the episode, it was referred to, simply, as a "cruiser". The Star Trek Encyclopedia alludes to the possibility that the T'Acog is a K't'inga-class battlecruiser.