The Kolarin system is a star system located near the Romulan Neutral Zone and contains six planets.

In 2379, Praetor Shinzon arranged for the body of the Soong-type android, B-4, to be scattered across the surface of Kolarus III, so that Captain Jean-Luc Picard and the USS Enterprise-E would be drawn to find and reassemble the android. The android when then act as a tool to gather information on the movements of Starfleet vessels. (TNG movie novelization: Star Trek Nemesis)