Antoon Arnold Marie "Teun" Struycken was a Dutch jurist and politician, co-founder of the Catholic People's Party (KVP) – now merged into the Christian Democratic Appeal (CDA).

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.