The Bardeezans were a spacefaring species by the late 24th century.

In 2370, a Bardeezan merchant ship stopped at Deep Space 9 before traveling to the Gamma Quadrant. (DS9: "The Maquis, Part I")

This species was only mentioned in dialogue.
According to, the Bardeezans were from a planet named Bardeeza or from a star system where the star was named Bardeeza. An alternative name, Bardeezi, is used in Obsidian Alliances.