CSS Lady Davis was a gunboat in the Confederate States Navy during the American Civil War. Originally the Richmond iron steam tug James Gray, built at Philadelphia, Pennsylvania in 1858, Lady Davis was purchased in March 1861 by Governor Francis Wilkinson Pickens of South Carolina, who armed her and placed in command Lieutenant William Gaillard Dozier, South Carolina Navy, with orders to thwart reinforcement of Fort Sumter by Union troops.