Thomas Milburn Davis III (born January 5, 1949) 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. From 2008 to 2018, he was a director of federal government affairs at Deloitte. He is currently the rector (head of the Board of Visitors) of George Mason University and a trustee of its Krasnow Institute for Advanced Study. In January 2019, he began work as a partner in the law firm Holland and Knight.