Communion has several meanings within Christianity. It can refer to:

• Communion (Christian), the relationship between Christians as individuals or Churches
• The Communion of Saints, a doctrine of Christianity mentioned in the Apostles' Creed
• A group of related Christian churches or denominations
• The Eucharist, the rite that Christians perform in fulfillment of Jesus' instruction to do in memory of him what he did at his Last Supper
• That part of the Eucharistic rite in which the consecrated bread and wine are distributed to participants
• Communion (chant), the Gregorian chant that accompanies this rite

Communion may also refer to: The term Communion is derived from Latin communio (sharing in common). ... The Communion of Saints is a Christian doctrine held by the majority of major Christian churches. ... The Apostles Creed (Latin: Symbolum Apostolorum), sometimes titled Symbol of the Apostles, is an early statement of Christian belief, creed, or symbol. ... A denomination, in the Christian sense of the word, is an identifiable religious body under a common name, structure, and/or doctrine. ... The Eucharist or Communion or The Lords Supper, is the rite that Christians perform in fulfillment of Jesus instruction, recorded in the New Testament,[1] to do in memory of him what he did at his Last Supper. ... A Medieval Low Mass by a bishop. ... The Communion is the Gregorian chant sung during the Eucharist in the Roman Mass. ...

• Communion (book), a book by Whitley Strieber about his purported abductions by aliens.

See also Louis Whitley Strieber (born June 13, 1945) is a US writer best known for his horror novels The Wolfen and The Hunger and for Communion, which professes to be a non-fictional description of his subjective experiences with non-human entities; see alien abduction. ...

• Communio, theological journal