This is a list of trains and train museums in the San Francisco Bay Area of Northern California in the United States.
Full-size commuter trains
The Bay Area hosts several regional commuter rail operations, as well as inter-city rail. Commuter and intercity Altamont Corridor Express (ACE) Amtrak (California Zephyr, Capitol Corridor, Coast Starlight, and San Joaquins) Caltrain Sonoma–Marin Area Rail Transit
Rapid transit
Bay Area Rapid Transit (BART)
Light rail / streetcar
Santa Clara Valley Transportation Authority light rail (VTA) San Francisco Municipal Transportation Agency (SFMTA) Muni Heritage streetcars (including the Market Street Railway) Muni Metro San Francisco cable car system
Full-size excursion trains
The Bay Area is home to several heritage railways that operate full size trains.
Ardenwood Historic Farm – Fremont
California Trolley and Railroad Corporation – San Jose
Napa Valley Wine Train – between Napa and St. Helena
Niles Canyon Railway – between Fremont and Sunol
Roaring Camp & Big Trees Narrow Gauge Railroad
Santa Cruz, Big Trees and Pacific Railway
Ride-on trains
The Bay Area is home to several ridable miniature railways.
East Bay
Golden Gate Live Steamers – Berkeley
Kennedy Park Train - Hayward
Oakland Zoo – Oakland
Redwood Valley Railway – Berkeley
Peninsula
Central Park Bianchi Train – San Mateo
Emerald Hills Railway – Redwood City
Little Puffer – San Francisco Zoo
North Bay
Seaside Railway at Six Flags Discovery Kingdom – Vallejo
Sonoma TrainTown Railroad – Sonoma
South Bay
Billy Jones Wildcat Railroad – Los Gatos
Bonfante Railroad Train Ride and Sky Trail Monorail at Gilroy Gardens – Gilroy
Happy Hollow Park & Zoo – San Jose
Museums
The Bay Area is home to several independent railway museums.
East Bay
Golden Gate Railroad Museum – Niles Canyon
Niles Depot Museum – Fremont
North Bay
Tiburon Depot – Tiburon
Western Railway Museum – Solano County
Peninsula
Colma Historical Association – Colma
Millbrae Train Museum – Millbrae, California
San Francisco Cable Car Museum – San Francisco
San Francisco Railway Museum – San Francisco
South Bay
Los Altos History Museum – Los Altos
Edward Peterman Museum of Railroad History – Santa Clara
Model trains
There are several clubs in the Bay Area that are home to large layout model trains.