The USS Troup was the British Post Office Packet Service packet Princess Amelia, which Joshua Barney in the American privateer Rossie captured at the start of the War of 1812. After a short but intense fight, Princess Amelia struck on 16 September 1812. Rossie sent her prize into Savannah, Georgia. There the United States Navy bought her and named her Georgia. The Navy then changed her name to Troup, naming her after Congressman George Troup of Georgia who had written to Secretary Hamilton urging her purchase.