2006 United States House of Representatives elections in Connecticut
The 2006 United States House of Representatives elections in Connecticut were held on November 7, 2006, to elect the five members of the U.S. House, one from each of the state's congressional districts, to represent Connecticut in the 110th Congress. The elections coincided with a state gubernatorial election and a U.S. Senate election, as well as with Congressional elections in other states. Four Democrats and one Republicans were elected by these elections; two of the Democratic victories resulted from the defeats of incumbent Republicans. The Representatives elected by these elections  served in Congress from January 3, 2007, until January 3, 2009. As of 2020, this is the last election in which a Republican won a congressional district in Connecticut. District 1. Incumbent Democrat John B. Larson faced Republican challenger Scott MacLean in the election; Larson was re-elected with 74.44 percent of the vote. District 2. Incumbent Republican Rob Simmons faced Democratic challenger Joe Courtney in the election in a rematch of their 2002 race; Courtney narrowly defeated Simmons by only 83 votes. District 3. Incumbent Democrat Rosa L. DeLauro faced Republican challenger Joseph Vollano in the election; DeLauro was  re-elected with 76 percent of the vote. District 4. Incumbent Republican Christopher Shays faced Democratic challenger Diane Farrell in the election; Shays was re-elected with 50.96 percent of the vote. District 5. Incumbent Republican Nancy L. Johnson faced Democratic challenger Chris Murphy in the election; Murphy defeated the incumbent with 56.46 percent of the vote.