The San Francisco Ferry Building is a terminal for ferries that travel across the San Francisco Bay, a marketplace, and also has offices, located on The Embarcadero in San Francisco, California. On top of the building is a 245-foot tall clock tower, with four clock dials, each 22 feet in diameter, which can be seen from Market Street, a main thoroughfare of the city.

Designed by the New York architect A. Page Brown in the Beaux Arts style in 1892, the ferry building was completed in 1898. At its opening, it was the largest project undertaken in the city up to that time. Brown designed the clock tower after the 12th-century Giralda bell tower in Seville, Spain, and the entire length of the building on both frontages is based on an arched arcade.

With decreased use after bridges were constructed across the bay to carry railroad traffic, in the 1950s, the building was adapted for office use and its public spaces were broken up in an unsympathetic manner. In 2002, a restoration and renovation were undertaken to redevelop the entire complex. The 660-foot long Great Nave was restored, together with its height and materials. A marketplace was created for the ground floor, the former baggage handling area. The second and third floors were adapted for office and Port Commission use. During daylight, on every full and half-hour, the clock bell chimes portions of the Westminster Quarters. The ferry terminal is a designated San Francisco landmark and is listed on the National Register of Historic Places.