J'nek was a Klingon warrior of the House of Grilka in the mid-2370s.
J'nek was a warrior on Grilka's ship, and married his house head during the Dominion War. He fathered a daughter with her, Koren, who was born near the end of the war.
J'nek was killed in action late in the war. (STO mission: "Day of Honor")