John Spencer was an English professional snooker player. One of the most dominant players of the 1970s, he won the World Snooker Championship three times, in 1969, 1971 and 1977. He worked as a snooker commentator for the BBC from 1978 to 1998 and served for 25 years on the board of the sport's governing body, the World Professional Billiards and Snooker Association (WPBSA), including a stint as chairman from 1990 until his retirement from the board in 1996.