Thomas Milburn Davis III is an American lobbyist and former Republican member of the United States House of Representatives who represented Virginia's 11th congressional district in Northern Virginia. Davis was considering a run for the U.S. Senate seat being vacated by five-term incumbent and fellow Republican John Warner in the 2008 election, but decided against it. He announced on January 30, 2008, that he would not seek reelection to an eighth term. Davis resigned from Congress on November 24, 2008.

Virginia's 11th congressional district is a U.S. congressional district in the Commonwealth of Virginia. Situated in the Northern Virginia suburbs of Washington, D.C., the district comprises most of Fairfax County and the entirety of Fairfax City. The district is represented by Democrat Gerry Connolly.