Justification may refer to:

  • Theory of justification, a part of epistemology that attempts to understand the justification of propositions and beliefs
  • Justification (jurisprudence), defence in a prosecution for a criminal offense
  • Justification (theology), God's act of declaring or making a sinner righteous before God
  • Justification (typesetting), a kind of typographic alignment
  • Formal proof, an object that justifies the validity of a formalized statement
  • Justification may also refer to ad hoc hypotheses and explanations
  • Rationalization (making excuses), a phenomenon in psychology