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