The Benzite system was a planetary system in Federation space. The system consisted of its primary and five planets, including Benzar. This planet was the homeworld for the space-faring Benzites.

In 2256, during the Federation-Klingon War, the USS Discovery broke the Klingon supply line in this system. (DIS: "Choose Your Pain")

During the Dominion War, the Benzite system was conquered by Dominion forces. The system was liberated in mid-2374 by the Romulans. (DS9: "The Reckoning"; DIS: "Choose Your Pain")

This system was only mentioned in dialogue.
According to Star Trek: Star Charts (p. 56) and Stellar Cartography: The Starfleet Reference Library ("Federation Historical Highlights, 2161-2385"), the Benzite (Delta Pavonis) system was located in the Beta Quadrant. The system's primary was a G-class star.
In the Star Trek Encyclopedia (4th ed., vol. 1, p. 78), this system was called the Benzar system.