The Centre Party (), officially the German Centre Party () and also known in English as the Catholic Centre Party, is a Christian democratic and Catholic political party in Germany. Influential in the German Empire and Weimar Republic, it is the oldest German political party in existence. Formed in 1870, it successfully battled the Kulturkampf waged by Chancellor Otto von Bismarck against the Catholic Church. It soon won a quarter of the seats in the Reichstag, and its middle position on most issues allowed it to play a decisive role in the formation of majorities. The party name Zentrum (Centre) originally came from the fact that Catholic representatives would take up the middle section of seats in parliament between the social democrats and the conservatives.David Blackbourn, "The Political Alignment of the Centre Party in Wilhelmine Germany: A Study of the Party's Emergence in Nineteenth-Century Württemberg," Historical Journal Vol. 18, No. 4 (Dec. 1975), pp. 821-850 in JSTOR
