Klorgat IV was a planet near the Klingon-Romulan border.

Sometime prior to 2381, the Klingon Empire claimed the planet, assuming ownership of the Reman population present. However, the Romulan Star Empire attacked the planet under orders of Praetor Tal'Aura. During a diplomatic summit on Earth hosted by Federation President Nanietta Bacco attended by various ambassadors, Ambassador K'mtok demanded reparations from Ambassador Kalavak for the attack. (ST novel: Articles of the Federation, ST - Destiny novel: Mere Mortals)

Angarraken was one of several Remans who did not locate to Klorgat IV. (ST - Typhon Pact novel: Rough Beasts of Empire)