The Avery system was a planetary system in the Delta Quadrant.

In 2371, the USS Voyager conducted a survey of the Avery system, but after it completed that survey, it discovered a hidden Vidiian base on the third planet, Avery III. (VOY: "Faces")

According to Star Trek: Star Charts (p. 83), the Voyager visited this system on stardate 48784. The Avery system's primary was an A-class star.