The Styris system was an inhabited star system in Federation space. The fourth planet of this system was a member of the Federation.

In 2364, after completing its mission in the nearby Ligon system, the starship USS Enterprise-D delivered a cargo of the vaccine for the Anchilles fever at Styris IV. (TNG: "Code of Honor")

• Styris (primary)
  • Styris I
  • Styris II
  • Styris III
  • Styris IV