Mystical union may refer to:
Mysticism, religious traditions of human transformation aided by various practices and religious experiences
Christianity Hypostatic union, a technical term in Christian theology employed in mainstream Christology to describe the union of Christ's humanity and divinity in one hypostasis Mystical theology, the branch of Christian theology that deals with the divine encounter and self-communication of God with the faithful Sacramental union, the Lutheran theological doctrine of the real presence of the Body and Blood of Christ in the Eucharist Union with Christ, the relationship between the believer and Jesus Christ
Other uses Henosis, the classical Greek word for mystical "oneness", "union" or "unity"