Johannes Gerardus Hendrikus (Hans) Janmaat (Nes aan de Amstel, 3 November 1934 – The Hague, 9 June 2002) was a Dutch politician. He was a member of the House of Representatives on behalf of the Centrumpartij (CP) and later the Centrumdemocraten (CD) between 1982 and 1998 (with an interruption from 1986 to 1989).