John Wilson Ross was an American jurist and political figure who served as a justice of the Supreme Court of Arizona during the early twentieth century. Appointed to the bench on November 13, 1918, by Governor George W. P. Hunt, Ross was chosen to replace outgoing Justice Alfred Franklin. Franklin had previously been defeated in the 1918 primary election by Albert C. Baker and chose to resign before the official end of his term to assume a role as the Collector of Internal Revenue for the Arizona–New Mexico District. Ross's judicial term concluded on January 6, 1919, lasting only eight weeks. This brief period established Ross as holding the shortest tenure in the history of the Arizona Supreme Court, a distinction that stands in contrast to his brother, Henry D. Ross, who achieved the court's longest-serving tenure. Beyond his time on the bench, Ross remained active in state governance, later serving as a representative for Cochise County in the Ninth Arizona State Legislature.
