List of world eight-ball champions

Professional world champions in eight-ball pool and its variations include:

American-style
This section lists world champions in the internationally standardized game ("American-style") of eight-ball, as played by professionals around the world. This is played on the 9-foot pool tables with colored, numbered balls.

WPA World Eight-ball Championship
The following is a list of WPA world eight-ball champions sanctioned by the World Pool-Billiard Association (WPA).

British-style
This section lists world champions in British-style eight-ball, which exists in a few slight-variant versions (usually referred to as blackball and eightball pool) with different governing bodies. This version is played at the amateur and semi-professional levels in Commonwealth countries and a few continental European nations. These tournaments are played on 7-foot pool tables with colored balls—typically red and yellow—instead of the solid and striped balls of American-style pool, though both game types feature a black.

WPA World Blackball Championship
The following is a list of WPA world blackball champions, sanctioned by the World Pool-Billiard Association (WPA). The blackball rules variant was first discussed by the WPA in a unification meeting in 2004, with rules ratified in 2005 in anticipation of blackball's first world championship in 2006.

WEPF World Eightball Championship
The following is a list of WEPF world eightball champions, sanctioned by the World Eightball Pool Federation. It was held for 22 consecutive years in Blackpool, England, then in 2022 for the first time was held in Killarney, Ireland. The WEPF rules were introduced in 1998 then modified for professional play in 2022.

IPA World Blackball Championship
The following is a list of IPA world blackball champions, sanctioned by the International Professional Pool Association. The IPA events use the WPA blackball rules.

PPPO World Eightball Championship
The following is a list of PPPO world eightball champions, sanctioned by the Professional Pool Players Organisation. In 1985, the PPPO (also known as EUKPF) ran their first event under the EPA rules of the English Pool Association, which pre-dated the standardized WEPF world rules introduced in 1998. PPPO drew contestants from other pool disciplines and from snooker to popularize the game more broadly. From 1996, the tournament was annual, up to 2005, when the last of its events was held.

CBSA World Chinese Eight-ball Championship
The following is a list of CBSA World Chinese eight-ball champions, a Chinese variant of eight-ball pool played on a 9-foot snooker table, sanctioned by the Chinese Billiards and Snooker Association.