The IKS Rok was a Klingon starship in service in the 2370s.

In 2372, the Rok participated in the Empire's invasion of the Cardassian Union. General Martok later ordered it to establish headquarters on the Cardassian planets and colonies it had captured and to get back in formation with the fleet for an attack on Cardassia. (DS9 novelization: The Way of the Warrior)