In Christian theology, a private revelation is an instance of revelation, in a broader sense of the term, of divine reality to a person or persons. It contrasts with revelation intended for humanity at large, which is sometimes termed public revelation.

Within Catholicism, an official skeptical predisposition toward accounts of private revelation is maintained. When recognized by the authority of the church – after their credibility and religious significance has been judged positively by the local Catholic bishop – these messages are considered helpful to believers "in a certain period of history". Still, faith in them is equated to human faith, as opposed to supernaturally bestowed faith, and such beliefs are not dogmatically taught. Private revelations come in a variety of types, such as Marian apparitions and visions. Any such revelation is deemed not to add to or amend the completed revelation, but as a heavenly message that helps its recipients and other faithful live by revelation.