340 Fremont Street is a 440-foot (130 m) residential skyscraper in the Rincon Hill neighborhood of San Francisco, California.

[3] Developed by Archstone Smith and Jackson Pacific Ventures, and initially designed by Heller Manus Architects, the development was approved for 332 residential units with 332 underground parking spaces by the San Francisco Planning Commission on June 15, 2006.

[3][5] Due to the United States housing market correction and the ensuing worldwide financial crisis, construction was delayed.

[4] Previous structures on the site that were razed included a 3-story building at 340 Fremont Street, constructed in 1962, once occupied by the National Maritime Engineers Benefit Association, and 350 Fremont Street, constructed in 1952, which was previously occupied by the Seafarer's Union.

To partially mitigate the loss of the "maritime labor historic context", the project will include a publicly accessible interpretive display in a midblock passage off Fremont Street.