Fremantle Long Jetty

Fremantle Long Jetty was a former jetty that existed in Fremantle, Australia. The jetty laid in Bather's Bay and was a centre of trade and communications that served Fremantle and Perth until Fremantle Harbour was opened.

It was constructed in 1873 to replace the smaller South Jetty which had become too small for the large amounts of vessels entering the Swan River Colony in Western Australia. An increased amount of shipping made it necessary to improve the harbouring facilities by the late 1860s. Long Jetty was built as a less expensive alternative to building a harbour at the mouth of the Swan River due to a lack of funds and technological shortcomings. However the growing needs of the colony prompted the eventual construction of Fremantle Harbour and the jetty fell into disuse and disrepair after its opening.

In July 1984 the Maritime Archaeology Department of the Western Australian Museum was notified of plans to construct a marina for the 1987 America's Cup that would be close to the remains of the Long Jetty. This prompted an archaeological excavation to ascertain the importance of the site. Challenger Harbour now occupies part of the area the jetty once existed, while remains of the jetty remain visible off Bathers Beach.