The 2012 United States House of Representatives elections in Massachusetts were held on Tuesday, November 6, 2012 to elect the nine U.S. Representatives from the state of Massachusetts, a loss of one seat following the 2010 Census, for service in the 113th Congress from January 3, 2013 to January 3, 2015. The elections coincided with the elections of other federal and state offices, including a quadrennial presidential election. The candidate elected in each of the state's congressional districts was a member the Democratic Party.