Geet Siriram Sethi of India is a professional player of English billiards and a notable amateur (ex-pro) snooker player. Sethi won his first major English billiards event in 1982, the Indian National Billiards Championship, defeating Michael Ferreira and later went on to win the NBC again four years in a row, 1985–1988, and made a comeback in both 1997 and 1998 to reclaim the title. He rose to international prominence by winning the IBSF World Amateur Billiards Championships in 1985. In 1987, he again won the IBSF event, as well as the ACBS Asian Billiards Championship. He won another World Amateur Billiards title in 2001. In the 1992 World Professional Billiards Championship, Sethi constructed a world-record English billiards break of 1276 under the three-pot rule and won first place. He went on to win the title again in 1993, 1995, 1998 and 2006. He has been described as an "arch-rival"of Mike Russell of England.
Sethi won gold and silver medals in doubles and singles English billiards respectively at the 13th Asian Games. He also won silver and bronze medals in doubles and singles English billiards respectively at he 14th Asian Games. At the 15th Asian Games (2006, Doha, Quatar), he took bronze medal in English billiards. He is a record six-time winner of the professional-level and a three-time winner of the amateur World Championships, and holder of two world records, in English billiards