Justice Allen may refer to:
Charles Allen (jurist) (1827–1913), associate justice of the Massachusetts Supreme Judicial Court Elisha H. Allen (1804–1883), chief justice of the Hawaiian Islands Florence E. Allen (1884–1966), associate justice of the Ohio Supreme Court Frederic W. Allen (1926–2016), chief justice of the Vermont Supreme Court George W. Allen (judge) (1844–1928), associate justice and chief justice of the Colorado Supreme Court Harry K. Allen (1872–1959), associate justice of the Kansas Supreme Court John Allen (Rhode Island judge) (1748–1813), associate justice of the Rhode Island Supreme Court John Campbell Allen (1817–1898), associate justice and chief justice of the colonial New Brunswick Supreme Court John E. Allen (judge) (1873–1945), associate justice of the New Hampshire Supreme Court John J. Allen (judge) (1797–1871), associate justice of the Virginia Supreme Court of Appeals Stephen Haley Allen (1847–1931), associate justice of the Kansas Supreme Court William Allen (Massachusetts judge) (1822–1891), judge of the Massachusetts Supreme Judicial Court William Allen (loyalist) (1704–1780), chief justice of the Supreme Court of Pennsylvania William F. Allen (New York politician) (1808–1878), associate justice of the New York Court of Appeals William H. H. Allen (1829–1893), associate justice of the New Hampshire Supreme Court William Reynolds Allen (1860–1921), associate justice of the North Carolina Supreme Court