Justice Mason may refer to:
Anthony Mason (judge) (born 1925), chief justice of the High Court of Australia Charles Mason (Iowa judge) (1804–1882), chief justice of the Iowa Supreme Court Charles Mason (New York judge) (1810–1879), judge of the New York Court of Appeals Charles W. Mason (1887–1969), associate justice of the Oklahoma Supreme Court Henry F. Mason (1860–1927), associate justice of the Kansas Supreme Court John Thomson Mason Jr. (1815–1873), judge of the Maryland Court of Appeals John W. Mason (1842–1917), associate justice of the Supreme Court of Appeals of West Virginia M. L. Mason (1906–1990), associate justice of the Iowa Supreme Court Oliver P. Mason (1829–1891), associate justice of the Nebraska Supreme Court Thomson Mason (1733–1785), chief justice of the Supreme Court of Virginia