The 2014 United States House of Representatives elections in Illinois were held on Tuesday, November 4, 2014, to elect the 18 U.S. representatives from the state of Illinois, one from each of the state's 18 congressional districts. The elections coincided with the elections of other federal and state offices, including Governor of Illinois and United States Senate. The GOP gained two seats in this election, one in the 10th district with the election of Bob Dold in a rematch with incumbent Brad Schneider, and one in the 12th district with the election of Mike Bost over incumbent William Enyart. The gains narrowed the Democrat margin to 10–8 in the delegation.