List of WBU world champions
The following is a list of WBU world champions, a table showing the world champions certificated by the World Boxing Union.
r - Champion relinquished title.
s - Champion stripped of title.
List of WBU Heavyweight Champions
WBU heavyweight champions have included:| Name | Duration of reign | Defenses | Notes |
 George Foreman | March 29, 1995 - 1997 | 2 | Foreman was recognized as champion after he was stripped of the IBF title |
 Corrie Sanders | November 15, 1997 - May 20, 2000 | 3 | Defeated Ross Purity |
| Hasim Rahman | May 20, 2000 - April 21, 2001 | 0 | Relinquished the title in order to fight Lennox Lewis for the IBF, IBO and WBC titles |
 Johnny Nelson | November 24, 2001 - December 4, 2001 | 0 | Defeated Alexander Vasiliev. Relinquished the title in order to concentrate on defending his WBO Cruiserweight title |
 Georgi Kandelaki | December 21, 2002 - January 2004 | 0 | Defeated Alexander Vasiliev. Kandelaki either relinquished or was stripped of the title |
| Matt Skelton | February 25, 2005 - January 26, 2009 | 0 | Skelton relinquished the title |
| Marselles Brown | September 24, 2016 – 2017 | 0 | Brown was stripped of the title, stripped date is unknown |
 Adam Braidwood | February 24, 2017 - present | 0 |