The 2006 Connecticut gubernatorial election occurred on November 7, 2006. Incumbent Republican Jodi Rell became governor when John G. Rowland resigned on corruption charges in 2004. Rell had an approval rating of 70% as of October 19, 2006, and polls showed her leading the Democratic nominee, New Haven mayor John DeStefano by a near 30-point margin. As expected, she won the election to a full term in a landslide. DeStefano defeated Stamford Mayor Dannel Malloy in the Connecticut Democratic gubernatorial primary on August 8. As of 2024, this is the last time a Republican and woman was elected Governor of Connecticut, and the last time any gubernatorial candidate won every county in the state to date.

Mary Carolyn "Jodi" Rell is an American former politician who served as the 87th governor of Connecticut from 2004 to 2011. Rell also served as the state's 105th lieutenant governor of Connecticut from 1995 to 2004 under Governor John G. Rowland, and became governor after Rowland resigned from office. As of 2024, Rell is the very last Republican and woman to officially serve as Governor of Connecticut to date.