The Assumption of the Blessed Virgin Mary into Heaven, informally known as The Assumption, is an event which according to the belief of Christians of the Roman Catholic Church, Eastern Orthodoxy, Oriental Orthodoxy, and parts of Anglicanism, was the bodily taking up of the Virgin Mary into Heaven at the end of her life.

The Roman Catholic Church teaches as dogma that the Virgin Mary "having completed the course of her earthly life, was assumed body and soul into heavenly glory." This doctrine was dogmatically and infallibly defined by Pope Pius XII on November 1, 1950, in his Apostolic Constitution Munificentissimus Deus. This belief is known as the Dormition of the Theotokos by the Eastern and Oriental Orthodox Churches. In the churches which observe it, the Assumption is a major feast day, commonly celebrated on August 15. In many countries it is a Catholic Holy Day of Obligation.