Denis Charles Betts (born 14 September 1969) is an English rugby league coach and former player. He was assistant coach of the England national team. A second-row, Betts played in the 1980s, 1990s and 2000s for the Wigan Warriors, with whom he won numerous titles, and for the Auckland Warriors. He won four caps for England and 32 for Great Britain, setting a record for a forward. He played in two Rugby League World Cups, in 1989-92 and 1995, including playing in the finals of both.