Justice Simpson may refer to:
A. H. Simpson (1843–1918), justice of the Supreme Court of New South Wales Carolyn Simpson (born 1946), justice of the Supreme Court of New South Wales David F. Simpson (1860–1925), associate justice of the Minnesota Supreme Court George B. Simpson (c. 1882–1954), associate justice of the Washington Supreme Court Gordon Simpson (judge) (1894–1987), justice of the Texas Supreme Court Jesse L. Simpson (1884–1973), chief justice of the Illinois Supreme Court R. T. Simpson (1837–1912), associate justice of the Alabama Supreme Court Robert Tennent Simpson Jr. (1893–1974), associate justice of the Alabama Supreme Court William Dunlap Simpson (1823–1890), chief justice of the South Carolina Supreme Court William Simpson (Australian judge) (1894–1966), justice of the Supreme Court of the Australian Capital Territory
See also Judge Simpson (disambiguation)