Bear Transit is the bus service operated by the Department of Parking and Transportation of the University of California, Berkeley. Its fleet includes a combination of shuttle vans and passenger buses (small and regular-sized), with all of its passenger buses formerly owned by AC Transit. In the early 2000s the passenger buses used were refurbished by AC Transit. Bear Transit connects various areas of the university, including student housing, the main campus, the Hill area, Downtown Berkeley (including Berkeley BART), and distant locations such as Lawrence Hall of Science in the East Bay Hills and the Clark Kerr Campus south of the main campus. It also provides shuttle service to the Richmond Field Station (RFS), a research facility also owned by the University, located in Richmond.

The University of California, Berkeley (also referred to as Berkeley, UC Berkeley, California or simply Cal) is a public research university located in Berkeley, California. It is the flagship campus of the University of California system, one of three parts in the state's public higher education plan, which also includes the California State University system and the California Community Colleges System.