The Port of Redwood City is a marine freight terminal on the western side of the southern San Francisco Bay, on the West Coast of the United States. This marine terminal is situated within the city of Redwood City, California. The port was developed from a natural deepwater channel discovered in the year 1850, at the mouth of Redwood Creek. From the early use as a log float port, commercial use expanded to a variety of industrial commodities; moreover, it is considered the birthplace of shipbuilding on the North American west coast. As of 2004 the annual freight shipments have reached about two million metric tons. The Port of Redwood City provides berths for dry bulk, liquid bulk, and project cargoes, along with certain recreational opportunities and public access to San Francisco Bay.

Redwood City is a city on the San Francisco Peninsula in Northern California's Bay Area, approximately 27 miles (43 km) south of San Francisco, and 24 miles (39 km) northwest of San Jose. Redwood City's history spans its earliest inhabitation by the Ohlone people to being a port for lumber and other goods. The county seat of San Mateo County in the heart of Silicon Valley, Redwood City is home to several global technology companies including Oracle, Electronic Arts, Evernote, Box, and Informatica. The city's population was 84,292 according to the 2020 census. The Port of Redwood City is the only deepwater port on San Francisco Bay south of San Francisco.