Grossmont Transit Center is a San Diego Trolley station located next to Grossmont Center in La Mesa, California.

The station serves a variety of residences, a dense commercial area, Sharp Grossmont Hospital, and has a park and ride commuter lot.

Grossmont Transit Center opened as part of the third segment of the East Line (now Orange Line) on June 23, 1989, which operated from 12th & Imperial to El Cajon.

[6] Green Line service began in July 2005, when the segment connecting to Mission San Diego first opened.

[6] An improvement project broke ground on February 17, 2010, to add elevators and a pedestrian bridge to the station, which was completed and began operation on November 19, 2011.