The Portas system is a star system located near the Demilitarized Zone.

In 2373, the system was controlled by the Breen; Starfleet monitored the system with two class-5 intelligence drones. The drones detected a Maquis freighter entering the system to obtain cold-storage units for the biogenic weapons the Maquis had recently acquired. (DS9: "For the Uniform")

• Portas (primary)
  • Portas I
  • Portas II
  • Portas III
  • Portas IV
  • Portas V