The Dallas Derby Devils (DDD) is an all-female flat track roller derby league in Dallas, Texas and surrounding area of Ft. Worth, Texas. Founded in November 2004, the Dallas Derby Devils is the original North Texas roller derby league with a current roster of 100+ active skaters, making DDD one of the largest flat track derby league in the south United States. The Dallas Derby Devils are an original member of the Women's Flat Track Derby Association (WFTDA), a national governing body of flat track leagues that are skater owned and operated, founded in November 2005.