Jan Jambon (born 26 April 1960 in Genk) is a Belgian politician affiliated to the New Flemish Alliance (N-VA).
He replaced Kris Peeters as a member of the Belgian Chamber of Representatives in 2007.
N-VA was at that time partners with the Christen-Democratisch en Vlaams party.
In June 2010 and May 2014 he was re-elected on an N-VA list.He became mayor of Brasschaat in 2013 after his party won the local elections in 2012.
In November 2014, he was replaced as acting mayor by Koen Verberck (also N-VA), after joining the new Federal Government.In October 2014 he became Deputy Prime Minister and Minister of the Interior and Security, charged with the direction of public buildings, in the Michel Government.
Jambon remained in this position until the government fell in December 2018. In October 2019, Jambon became the new Minister-President of Flanders, leading the Jambon Government.