Most knee knockouts in UFC heavyweight history
Walt Harris and Alistair Overeem share the UFC heavyweight records for most knee knockouts with 2 knee KO/TKOs.
UFC fights only. Updated October 20, 2026.
| # | Fighter | Knee KO/TKOs |
|---|---|---|
| 1 | Walt Harris | 2 |
| 1 | Alistair Overeem | 2 |
| 3 | Scott Ferrozzo | 1 |
| 3 | Mark Kerr | 1 |
| 3 | Ian Freeman | 1 |
| 3 | Ken Shamrock | 1 |
| 3 | Brandon Vera | 1 |
| 3 | Cheick Kongo | 1 |
| 3 | James McSweeney | 1 |
| 3 | Frank Mir | 1 |
| 3 | Josh Barnett | 1 |
| 3 | Fabricio Werdum | 1 |
| 3 | Tai Tuivasa | 1 |
| 3 | Juan Adams | 1 |
| 3 | Chris Daukaus | 1 |
| 3 | Kennedy Nzechukwu | 1 |
| 3 | Rizvan Kuniev | 1 |
| 3 | Johnny Walker | 1 |
Related records
How we count: results and statistics are from official UFC fight data.