Juan Diego Cuauhtlatoatzin, also known as Juan Diego, was a Chichimec peasant and Marian visionary. He is said to have been granted apparitions of the Virgin Mary on four occasions in December 1531: three at the hill of Tepeyac and a fourth before don Juan de Zumárraga, then bishop of Mexico. The Basilica of Our Lady of Guadalupe, located at the foot of Tepeyac, houses the cloak that is traditionally said to be Juan Diego's, and upon which the image of the Virgin is said to have been miraculously impressed as proof of the authenticity of the apparitions.
Juan Diego's visions and the imparting of the miraculous image, as recounted in oral and written colonial sources such as the Huei tlamahuiçoltica, are together known as the Guadalupe event, and are the basis of the veneration of Our Lady of Guadalupe. This veneration is ubiquitous in Mexico, prevalent throughout the Spanish-speaking Americas, and increasingly widespread beyond. As a result, the Basilica of Our Lady of Guadalupe is now one of the world's major Christian pilgrimage destinations, receiving 22 million visitors in 2010.
Juan Diego is the first Catholic saint indigenous to the Americas.