Hans Janmaat (November 3, 1934, Nes aan de Amstel - June 9, 2002, The Hague) was a right politician in the Netherlands. He represented the Centrumpartij and his own Centrum Democraten political parties in the House of Representatives, the Dutch lower house of parliament, between 1982 and 1998, when his party lost all of its (three) seats in parliament. Thus, he withdrew from politics. His best known slogans were 'Holland is not a country of immigration', 'full=full' and 'we will abolish, as soon as we get the possibility and power, the multicultural society'; he was convicted for the latter two statements.

He advocated among other things the forced removal of all foreigners from the Netherlands. He was repeatedly convicted for discrimination and hate speech.

He died of heart problems at age 67.