Judith or Judy Smith may refer to:
Judith Smith Ladson (1766–1820), American socialite and heiress Judith Winsor Smith (1821–1921), American women's suffrage activist and abolitionist Judith Kaye (1938–2016), née Smith, American jurist and chief judge of the New York Court of Appeals Judy Smith (born 1958), American crisis manager Judith Anne Smith, American jurist and associate judge on the Superior Court of the District of Columbia Judith Eldredge Smith (1946–1997), American homicide victim Judy Seriale Smith, state legislator in Arkansas