The 2008 congressional elections in Maryland were held on November 4, 2008, to determine who would represent the state of Maryland in the United States House of Representatives, coinciding with the presidential election. Representatives are elected for two-year terms; those elected serve in the 111th Congress from January 3, 2009, until January 3, 2011.
Maryland has eight seats in the House, apportioned according to the 2000 United States census. Its 2007–2008 congressional delegation consisted of six Democrats and two Republicans. Following the election, the delegation became seven Democrats and one Republican. District 1 was the only seat which changed party (from Republican to Democratic), and was the only district CQ Politics had forecast to be at some risk for the incumbent party.