William "Tra" Thomas, III (born November 20, 1974) is a former American football offensive tackle in the National Football League. He was drafted by the Philadelphia Eagles 11th overall in the 1998 NFL Draft. He played for the Eagles for eleven seasons, from 1998–2008. He played college football at Florida State. Thomas was also a member of the Jacksonville Jaguars and San Diego Chargers. He was a one-time All-Pro and three-time Pro Bowl selection in his career.