Our Lady of Medjugorje, also called Queen of Peace and Mother of the Redeemer, is the title given to alleged visions of Mary, the mother of Jesus, said to have begun in 1981 to six Herzegovinian Croat teenagers in Medjugorje, Bosnia and Herzegovina. The alleged visionaries are Ivan Dragičević, Ivanka Ivanković, Jakov Čolo, Marija Pavlović, Mirjana Dragičević and Vicka Ivanković. They ranged from ten to sixteen years old at the time of the first apparition.

Medjugorje is a village in the municipality of Čitluk in Herzegovina-Neretva Canton of the Federation of Bosnia and Herzegovina, an entity of Bosnia and Herzegovina. Since 1981, it has become a popular site of Catholic pilgrimage due to Our Lady of Medjugorje, a purported series of apparitions of the Virgin Mary, mother of Jesus, to six local children that are supposedly still happening to this day.