- For the primary universe counterpart, see Klingon Empire.
- For the alternate mirror universe counterpart, see Klingon Empire (AMU).
- For the mirror universe counterpart, see Klingon Alliance.
| INTERSTELLAR STATE | |
| Klingon Empire | |
| |
| Dominant species: | Klingon |
| Location: | Beta Quadrant |
| Sovereignty: | c. 9th century to 2294 |
| Military: | Klingon Defense Force |
| People | |
| Currency: | darsek, talon |
| Language: | Klingonese |
In the dark mirror universe, the Klingon Empire was once an interstellar state located in the Beta Quadrant until it was overthrown by the forces of the Terran Empire in 2294.