Justice Duncan
# Justice Duncan

Justice Duncan or Judge Duncan, may refer to:

* Allyson Kay Duncan (born 1951), U.S. Circuit Judge
* Charles T. Duncan (1838–1915), Virginia state judge
* John Alton Duncan (1932–2007), Manitoba Superior Court Judge
* Kyle Duncan (judge) (born 1972), U.S. Circuit Judge
* Laurence Ilsley Duncan (20th century), associate justice of the New Hampshire Supreme Court
* Rebecca Duncan (born 1971), associate justice of the Oregon Supreme Court
* Robert Morton Duncan (1927–2012), associate justice of the Ohio Supreme Court
* Warren W. Duncan (1857–1938), associate justice of the Illinois Supreme Court
