USS Dart (YFB-308) was a United States Navy ferry launch in service from 1900 to 1930, when she was transferred to the United States Lighthouse Service, and renamed the Locust, she was later transferred to the United States Coast Guard, until she was decommissioned in 1954.

Dart was sponsored by Miss Margaret Fechteler, and cost 15,000 dollars to build.

She was laid down on 6 April 1899, by the Mare Island Navy Yard, in Vallejo, California.

[1] Dart was attached to the Mare Island Navy Yard on 9 April 1900, where she served until 1930.

She was employed as a ferry between the Mare Island Navy Yard and Vallejo, California, and also as a stand-by fire boat.