Four men's adult world championships were held in 2019, with Judd Trump winning the World Snooker Championship, Ko Ping-chung winning the WPA World Ten-ball Championship, nine-ball by Fedor Gorst and the World Billiards Championship by Peter Gilchrist respectively. Women's world championships featured a World Snooker Championship won by Reanne Evans and the World Billiards Championship won by Anna Lynch. The events in this list are professional, pro–am, or notable amateur cue sports tournaments from the year of 2019.