Justice Kavanagh or Kavanaugh may refer to:
- Brett Kavanaugh (born 1965), associate justice of the Supreme Court of the United States
- Thomas G. Kavanagh (1917–1997), chief justice of the Michigan Supreme Court
- Thomas M. Kavanagh (1909–1975), associate justice of the Michigan Supreme Court
See also
edit- Megan Cavanagh (judge) (born 1970/1971), associate justice of the Michigan Supreme Court