Thomas Patrick David (born 2 April 1948 in Pontypridd) is a Welsh former dual-code international rugby union and rugby league footballer who played in the 1970s and 1980s. He played representative rugby union (RU) for Wales and the British Lions and rugby league (RL) for Wales. He was selected for the 1974 British Lions tour to South Africa, and at the time played club rugby for Llanelli RFC. He also played for his home-town club Pontypridd RFC, and while at the club was part of the 1976 Grand Slam winning Wales team. In 1981 he switched codes to rugby league, representing Cardiff City Blue Dragons.