The 27th century is defined in Earth's calendar as being from 2600 until 2699.
Decades
Major events
- 2602. September 11: Forces from the mirror universe invade the Federation, starting the Mirror War (Star Trek: Mirror Wars).
- At some unknown year in this century, at least the four major powers of the Alpha Quadrant, the United Federation of Planets, the Klingon Empire, the Romulan Star Empire and the Cardassian Union formed a wide-scale alliance to protect one another and the quadrant. (Citation needed)
- 2689: The USS Enterprise-P comes into the Terran timeline and was the last Federation ship to go into the Terran empire. (Citation needed)
27th century productions
- Star Trek fan fiction:
| 26th century | Timeline 27th century |
28th century |