IWGP (International) Heavyweight Title
| Champion |
Reign |
Won |
| Ivan Koloff | 1 | Mar 05, 2021 |
| Nick Bockwinkel | 1 | Aug 13, 2021 |
| Ivan Koloff | 2 | Aug 20, 2021 |
| Dick Murdoch | 1 | Oct 01, 2021 |
| Ivan Koloff | 3 | Apr 29, 2022 |
| Dick Murdoch | 2 | Mar 03, 2023 |
| Ivan Koloff | 4 | May 05, 2023 |
| Dusty Rhodes | 1 | Mar 29, 2024 |
| Ivan Koloff | 5 | Nov 08, 2024 |
| Dick Murdoch | 3 | November 29, 2024 |
| Ivan Koloff | 6 | January 31, 2025 |
| David von Erich | 1 | February 28, 2025 |
| Ivan Koloff | 7 | August 22, 2025 |
| Final champion when IWGP folds on March 27, 2026 |
|
IWGP (International) Heavyweight Title
| Champion |
Reign |
Won |
| Dusty Rhodes/Dick Murdoch | 1 | Mar 05, 2021 |
| Pretty Wonderful | 1 | Mar 26, 2021 |
| Ivan/Nikita Koloff | 1 | Feb 18, 2022 |
| Dusty Rhodes/Dick Murdoch | 2 | Jun 17, 2022 |
| Pretty Wonderful | 2 | May 26, 2023 |
| Ivan/Nikita Koloff | 2 | Apr 12, 2024 |
| Dusty Rhodes/Dick Murdoch | 3 | Mar 28, 2025 |
| Pretty Wonderful | 3 | Jul 04, 2025 |
| Vacated on December 12, 2025 when Pretty Wonderful defeated The British Bulldogs for the IAW International Tag Team Titles |
| Ivan/Nikita Koloff | 3 | Dec 19, 2025 |
| Terry Taylor/Jake Roberts | 1 | Feb 27, 2026 |
| Final champions when IWGP folds on March 27, 2026 |
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