Jacques Simon Monasch (born 4 January 1962) is a Dutch politician, art collector and former management as well as political consultant and civil servant. He was a member of the House of Representatives between 17 June 2010 and 23 March 2017, where he focused on matters of housing and spatial planning. He was a member of the Labour Party from 1986 to 2016. Due to Monasch leaving the Labour Party, the Second Rutte cabinet lost its majority in the House of Representatives. Several weeks after leaving the Labour Party Monasch announced he would enter the 2017 general election with his new party, Nieuwe Wegen. His party did not obtain any seats in the election.