Justice Parker may refer to:

Alton B. Parker (1852–1926), chief judge of the New York Court of Appeals Amasa J. Parker (1807–1890), justice of the New York Supreme Court and an ex officio judge of the New York Court of Appeals Charles Wolcott Parker (1862–1948), associate justice of the New Jersey Supreme Court Emmett N. Parker (1859–1939), associate justice of the Washington Supreme Court Frank W. Parker (1860–1932), associate justice of the New Mexico Supreme Court Glenn Parker (judge) (1898–1989), associate justice of the Wyoming Supreme Court Hubert Parker, Baron Parker of Waddington (1900–1972), Lord Chief Justice of England from 1958 to 1971 Isaac Parker (Massachusetts judge) (1768–1830), associate justice of the Massachusetts Supreme Judicial Court Jay S. Parker (1895–1969), associate justice of the Kansas Supreme Court Joel Parker (jurist) (1795–1875), associate justice of the New Hampshire Supreme Court Joel Parker (politician) (1816–1888), associate justice of the New Jersey Supreme Court John M. Parker (New York politician) (1805–1873), judge on the New York Court of Appeals Judith Parker (born 1950), judge in the UK High Court, Family division R. Hunt Parker (1892–1969), associate justice and chief justice of the North Carolina Supreme Court Richard Parker (judge, born 1729) (1729–1813), associate justice of the Supreme Court of Appeals of Virginia Richard E. Parker (1783–1840), associate justice of the Supreme Court of Appeals of Virginia (grandson of the above Richard Parker) Roger Parker (judge) (1923–2011), Lord Justice of Appeal of the Court of Appeal of England Sarah Parker (born 1942), chief justice of the North Carolina Supreme Court Thomas Parker, 1st Earl of Macclesfield (1666–1732), Lord Chief Justice of the Privy Council of England from 1710 to 1718 Tom Parker (judge) (born 1951), associate justice of the Alabama Supreme Court Will Parker (judge) (born c. 1980), associate justice of the Alabama Supreme Court

See also Judge Parker (disambiguation)