The Bara Plenum was a governmental body located in the Delta Quadrant.

During the 24th century, the Bara Plenum was at war with the Motali Empire, but at some point prior to the year 2375, they enlisted the help of the Think Tank, who turned the tide in the conflict. (VOY: "Think Tank")

The Star Trek Encyclopedia (4th ed., vol. 1, p. 65) identified the Bara Plenum as a civilization.