Thomas Dale DeLay (/dəˈl/; born April 8, 1947) is an American politician. He is a former member of the United States House of Representatives, representing Texas's 22nd congressional district from 1985 until 2006. He was Republican Party (GOP) House Majority Leader from 2003 to 2005.

In 2005, DeLay was indicted on criminal charges of conspiracy to violate election law in 2002 by Judge Ronnie Earle. DeLay resigned for a short time from his position as House Majority Leader and later, announced that he would not seek to return to the position. He resigned his seat in Congress in June 2006. He was acquitted in September 2013, only for it to be overturned in October 2014.