Justice Barnes may refer to:
Alanson H. Barnes (1817–1890), associate justice of the South Dakota Supreme Court Charles P. Barnes (1869–1951), associate justice and chief justice of the Maine Supreme Judicial Court John Barnes (judge) (1859–1919), associate justice of the Wisconsin Supreme Court John B. Barnes (1846–1921), associate justice of the Nebraska Supreme Court Richmond P. Barnes (1859–1946), associate justice of the New Mexico Supreme Court Wilson K. Barnes (1907–1997), associate justice of the Maryland Court of Appeals
See also Paul D. Barns (1894–1973), associate justice of the Florida Supreme Court Judge Barnes (disambiguation)