USS Fox was a captured Confederate schooner acquired by the Union Navy from the prize court during the American Civil War.

Finding the engine room flooded and the job of getting the steamer off beyond her limited capacity, Fox burned her to prevent her further use by the Confederates.

Four days later, again sailing alone, Fox encountered a British schooner from Havana in the Suwannee River, and after firing several shells, boarded her and took her prize.

The blockade runner's crew set her afire, but part of her cargo of cavalry sabers and farming equipment was saved from the flames by Fox's boarding party.

Several times during these years boat parties from Fox destroyed valuable salt works ashore, such expeditions combining with her captures to make hers a most significant role in the total effort to cut the Confederacy off from key supplies.