Apostolic may refer to:
- The Twelve Apostles of Jesus, or something related to them, such as the Church of the Apostles
- Apostolic succession, the doctrine connecting the Christian Church to the original Twelve Apostles
- The Apostolic Fathers, the earliest generation of post-Biblical Christian writers
- The Apostolic Age, the period of Christian history when Jesus' apostles were living
- The Apostolic Constitutions, part of the Ante-Nicene Fathers collection.
Specific to the Roman Catholic Church:
- Apostolic Administrator, appointed by the Pope to an apostolic administration or a diocese without a bishop
- Apostolic Camera, or "Apostolic Chamber", former department of finance for Papal administration
- Chancery of Apostolic Briefs, a historical office charged with preparation of Papal correspondence
- Apostolic constitution, a public decree issued by the Pope
- Apostolic Palace, the residence of the Pope in Vatican City
- Apostolic prefect, the head of a mission of the Roman Catholic Church
- An Apostolic See is any episcopal see whose foundation is attributed to one or more of the Apostles.
- Apostolic vicariate, a territorial jurisdiction of the Roman Catholic Church
Other churches and religious movements:
- Apostolic, Pentecostal, Oneness
- Armenian Apostolic Church, also known as the Armenian Orthodox Church, the national church of Armenia
- Apostolic Brethren, a 13th-century sect in northern Italy
- Apostolic Catholic and Spiritual Church, an independent Old Catholic Church of the Utrecht Succession
- Apostolic Christian Church, an anabaptist branch of Christianity
- Apostolic Church (denomination), an Evangelical Pentecostal denomination founded in 1916 in the United Kingdom
- Apostolic Johannite Church, a Gnostic church claiming apostolic succession
- Catholic Apostolic Church, a millenarian religious community, related to the Irvingism movement
- International Circle of Faith
- New Apostolic Church, a chiliastic church
- Oneness Pentecostalism, a large Christian grouping who assert a different doctrine of the Trinity to Evangelical churches
- Primitive Apostolic Christianity (Sabbatarian)
Other uses:
- Apostolic poverty, a doctrine professed in the 13th century by certain religious orders