| Championshipname: | Undisputed British Heavyweight Championship |
| Currentholder: | Michael Oku |
| Won: | 9 July 2023 |
| Promotion: | Revolution Pro Wrestling |
| Created: | 16 July 2005 |
| Mostreigns: | Zack Sabre Jr. (4 reigns) |
| Firstchamp: | Aviv Maayan |
| Longestreign: | Will Ospreay (919 days) |
| Shortestreign: | Aviv Maayan |
| Oldest: | Minoru Suzuki (50 years) |
| Youngest: | Andy Boy Simmonz |
| Heaviest: | Sha Samuels (107kg (236lb)) |
| Lightest: | Michael Oku (80kg (180lb)) |
| Pastnames: |
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The Undisputed British Heavyweight Championship is a professional wrestling championship owned by the Revolution Pro Wrestling (RevPro/RPW) promotion. The title was created and debuted on 16 July 2005 and is the promotion's principal championship. The current champion is Michael Oku, who is in his first reign.
The current title was formed after the IPW:UK Championship and the All-England Championship were unified into the Undisputed British Heavyweight Championship, but later became known as simply the "British Heavyweight Championship" after RPW separated itself from (IPW:UK). The title has been defended in the United States and in Japan through RPW's working relationships with New Japan Pro-Wrestling (NJPW) and Ring of Honor (ROH). In 2018, the championship name was reverted to the "Undisputed British Heavyweight Championship".
Michael Oku is the current champion in his first reign. He defeated Great-O-Khan for the title at RevPro Epic Encounter 2023 on 9 July, in London, England.
As of, .
| † | Indicates the current champion |
|---|
| Rank | Wrestler | No. of reigns | Combined days |
|---|---|---|---|
| 1 | 4 | 1,086 | |
| 2 | 1 | 919 | |
| 3 | 1 | 686 | |
| 4 | 2 | 651 | |
| 5 | 1 | 456 | |
| 6 | 1 | 448 | |
| 7 | † | 1 | + |
| 8 | 2 | 385 | |
| 9 | 1 | 349 | |
| 10 | 1 | 216 | |
| 11 | 1 | 209 | |
| 12 | 1 | 204 | |
| 13 | 2 | 168 | |
| 14 | 1 | 161 | |
| 15 | 1 | 148 | |
| 16 | 1 | 125 | |
| 17 | 1 | 118 | |
| 18 | 1 | 116 | |
| 19 | 1 | 105 | |
| 20 | 1 | 15 | |
| 21 | 1 | 1 | |