Justice Alexander may refer to:
Fritz W. Alexander II (1926–2000), judge of the New York Court of Appeals Donald G. Alexander (born 1942), justice of the Maine Supreme Judicial Court Gerry L. Alexander (born 1936), chief justice of the Supreme Court of Washington James P. Alexander (1883–1948), chief justice of Texas Joan K. Alexander (born 1961/62), justice of the Connecticut Supreme Court Julian P. Alexander (1887–1953), justice of the Supreme Court Mississippi