Rossie was a schooner launched at Baltimore in 1807. At the outbreak of the War of 1812 she became a privateer, operating under a letter of marque. She made two voyages, the first as a privateer, and the less successful second as a letter of marque. The British captured her in January 1813.

Thomas Kemp was a Baltimore shipbuilder, known for building some of the fastest and best known privateers of the War of 1812, such as Rossie, Comet, Patapsco, Chasseur, and Lynx.