USS Fernandina was a bark purchased by the Union Navy during the American Civil War.

Fernandina, a bark, was purchased 29 July 1861 at New York City as Florida; and renamed and commissioned 16 November 1861, Acting Volunteer Lieutenant G.W Browne in command.

On 13 December, she scattered a Confederate encampment on the beach near Little River Inlet, North Carolina, and 12 days later she took prize William H. Northrop, running the blockade with a cargo of drugs and coffee.

The bark discovered the schooner Kate out of Nassau, Bahamas, run aground on 2 April 1862, and after taking her papers off, burned the schooner, since both Fernandina and her party boarding the blockade runner were under Confederate fire from the shore.

This article incorporates text from the public domain Dictionary of American Naval Fighting Ships.