The Catechism in Questions & Answers

609. How did the name “New Apostolic Church” come into being?

In order to distinguish itself from the Catholic Apostolic congregations, the congregations that came into being after 1863 soon began calling themselves “New Apostolic congregations” in written correspondence. In 1907, the group officially adopted the name “New Apostolic Congregation”, and as of approximately 1930, began calling itself the “New Apostolic Church”.