Gamma Trianguli IV was the inhabited fourth planet of the Gamma Trianguli system. The system was located in the Gamma Trianguli sector. This was a non-Federation planet. Wendy Neuss, a lieutenant commander aboard the USS Enterprise-D, was from this planet.
In 2369, this planet was listed on the chart "USS Enterprise Personnel Database", which was displayed on a PADD used by Captain Jean-Luc Picard on aboard the Enterprise-D. (TNG: "The Chase", okudagram)