- The Homeworld
- Klinzhai (FASA RPG, Star Trek VI: The Undiscovered Country , Star Fleet Battles)
In 2293, a nearby moon, Praxis, exploded due to an accident involving over-mining. The subspace shockwave sent out by the explosion caused damage severe damage to Qo'noS's ozone layer, forcing planning for the evacuation of the planet. (Star Trek VI: The Undiscovered Country)
D'k tahg Valley was a region of Qo'noS that was home to a district known to non-Klingons only as 90210. In addition, it was home to much of the Klingon entertainment industry, including television. (Star Trek: False Vacuum)
The capital of Qo'noS is First City. Other cities include Qam-Chee, Quin-lat, and Tong Vey.
- Star Trek: Enterprise:
- Star Trek: The Next Generation:
- Star Trek: Deep Space Nine:
- Dimensional Prophecy of Zohar
It remains unclear if the Qo'noS seen in ENT: "Broken Bow, Part One" is the same planet as seen in TNG and DS9 episodes, as the evacuation of the original Qo'noS was never seen on screen, but only mentioned at the 2293 Khitomer Conference.