| Fairfield Transit | |
| Parent: | City of Fairfield |
| Headquarters: | 2000 Cadenasso Drive Fairfield, California |
| Locale: | Fairfield |
| Service Area: | Central and Northern Solano County |
| Service Type: | bus service, paratransit |
| Routes: | 8 |
| Ridership: | |
| Annual Ridership: | |
Fairfield Transit (FAST) provides general public fixed route bus service through eight local routes. All FAST buses are wheelchair accessible and most are equipped with bike racks.[1] In, the system had a ridership of, or about per weekday as of .
FAST runs eight bus lines within the city of Fairfield (including Cordelia) with transfer hubs at the Fairfield Transportation Center (FTC), Fairfield–Vacaville Amtrak station, Walmart store and Solano Town Center.