Justice Preston may refer to:
Byron W. Preston (1858–1939), associate justice of the Iowa Supreme Court Edward Preston (1831–1890), justice of the Supreme Court of the Kingdom of Hawaii Isaac Trimble Preston (1793–1852), associate justice of the Louisiana Supreme Court John W. Preston (1877–1958), associate justice of the Supreme Court of California
See also Gilbert of Preston (1209–1274), chief justice of the Common Pleas in the United Kingdom