The Church Temporalities Act 1833 (3 & 4 Will. 4 c. 37), sometimes called the Church Temporalities (Ireland) Act 1833, was an Act of the Parliament of the United Kingdom of Great Britain and Ireland which undertook a major reorganisation of the Church of Ireland, then the established church in Ireland. The Act suppressed ten bishoprics and merged the corresponding dioceses, with effect from the next vacancy.