The Irvine Transportation Center is a passenger rail and bus terminal in the Irvine Spectrum district of southeastern Irvine, California, United States. Located on the southwest end of the decommissioned Marine Corps Air Station El Toro, it is served by Amtrak California's Pacific Surfliner route, two Metrolink commuter rail lines, and multiple Orange County Transportation Authority bus routes.

Irvine is the largest city and a master-planned city in central Orange County, California, United States, in the Los Angeles metropolitan area. The Irvine Company started developing the area in the 1960s and the city was formally incorporated on December 28, 1971. The 66-square-mile (170 km2) city had a population of 307,670 at the 2020 census; it is the 63rd most populous city in the United States.