The Catholic People's Party was a Catholic Christian democratic political party in the Netherlands. The party was founded in 1945 as a continuation of the interwar Roman Catholic State Party, which was in turn a successor of the General League of Roman Catholic Caucuses. The party was in government throughout its existence. In 1977, a federation of parties including the Catholic People's Party, the Anti-Revolutionary Party (ARP) and the Christian Historical Union (CHU) ran together under the Christian Democratic Appeal (CDA) banner. The three participating parties formally dissolved to form the CDA in 1980.

The Roman Catholic State Party was a Catholic Christian democratic political party in the Netherlands. The party was founded in 1926 as a continuation of the General League of Roman Catholic Caucuses. During its entire existence, the party was in government. In 1945 the party became the Catholic People's Party (KVP).