William Frederick Mitchell (Calshot, 1845–1914, Ryde, Isle of Wight) was a British artist commissioned to paint many naval and merchant ships.
Mitchell's collected works were originally published in The Royal Navy in a series of illustrations. Many are in the National Maritime Museum Collection in Greenwich, England. Mitchell lived most of his life near Portsmouth and painted pictures of Royal Navy and merchant ships for their officers and owners. He also illustrated Brassey's Naval Annual. Mitchell's works are numbered and run to more than 3,500. His medium was principally watercolour but he painted some oils as well.