Legitimacy, from the Latin legitimare meaning "to make lawful", may refer to:

  • Legitimacy (criminal law)
  • Legitimacy (family law)
  • Legitimacy (political)

See also

  • Bastard (law of England and Wales)
  • Illegitimate (film), a 2016 Romanian film
  • Illegitimacy in fiction
  • Legit (disambiguation)
  • Legitimate (professional wrestling)
  • Legitimate expectation
  • Legitimate peripheral participation
  • Legitimate theater
  • Legitimation
  • Legitime
  • Legitimists (disambiguation)
  • Nomen illegitimum in botany is a valid published name that contravenes the international articles
  • Sources of law