USWA Unified World Heavyweight Championship
The USWA Unified World Heavyweight Championship was a professional wrestling world heavyweight championship formed in 1988, which consisted of the WCWA World Heavyweight Championship from World Class Championship Wrestling and the AWA World Heavyweight Championship from the American Wrestling Association. The title was unified on December 13, 1988, when AWA World Champion Jerry Lawler defeated WCWA World Champion Kerry Von Erich in a unification match.
The title was primarily recognized by and defended in the United States Wrestling Association until 1997, when the company ceased operations. However, the AWA withdrew its recognition of the championship shortly after the unification match when Lawler was stripped of the AWA world title. The title was also contested in a non-televised match prior to the World Wrestling Federation's King of the Ring event in 1993.
Title history
Combined reigns
| Rank | Wrestler | No. of reigns | Combined days |
| 1 | Jerry Lawler | 28 | 1764 |
| 2 | Sid Vicious | 2 | 208 |
| 3 | Jeff Jarrett | 3 | 196 |
| 4 | Eddie Gilbert | 4 | 137 |
| 5 | Terry Funk | 1 | 126 |
| 6 | Kamala | 4 | 125 |
| 7 | Dutch Mantel | 1 | 85-114 |
| 8 | Snowman | 1 | 70 |
| 9 | The Soultaker/Papa Shango | 2 | 63 |
| 10 | Ahmed Johnson | 1 | 44 |
| 11 | The Colorado Kid | 1 | 43 |
| 12 | Randy Savage | 1 | 40 |
| 13 | Bill Dundee | 1 | 37 |
| 14 | Koko B. Ware | 2 | 28 |
| 14 | Razor Ramon | 1 | 28 |
| 16 | Master of Pain | 1 | 24 |
| 17 | Jimmy Valiant | 2 | 21 |
| 17 | Junkyard Dog | 1 | 21 |
| 19 | Todd Champion | 1 | 16 |
| 20 | King Reginald | 1 | 15 |
| 21 | Awesome Kong | 1 | 14 |
| 21 | Owen Hart | 1 | 14 |
| 23 | King Cobra | 1 | 9 |
| 24 | Ricky Morton | 1 | 7 |
| 24 | Tank | 1 | 7 |
| 24 | Tatanka | 1 | 7 |
| 24 | The Dragon Master | 1 | 7 |
| 28 | Butch Reed | 1 | 5 |