Royal Augustus Stone (June 26, 1875 – September 13, 1942) was an American jurist. Born in Le Sueur, Minnesota, Stone moved with his parents to Morris, Minnesota. He finished high school at the academy at Carleton College. Stone went to University of Minnesota. He then went to the Washington University School of Law and received his law degree in 1897. Stone was admitted to the Minnesota bar and practiced law in Morris, Minnesota in 1897. Stone was the attorney for Morris, Minnesota. Stone served in the United States Army during the Spanish–American War and World War II. From 1905 to 1907, Stone served as Minnesota assistant attorney general. He then practiced law in Saint Paul, Minnesota. Stone served on the Minnesota Supreme Court from 1923 until his death in 1942. Stone died in a hospita