championship stripped when Zbyszko left the inactive AWA for WCW. The AWA closed in 1991.

Zbyszko won a battle royal, last eliminating Tom Zenk.

Lawler was stripped of the championship after the Continental Wrestling Association split from the AWA.

Lawler defeated Kerry Von Erich on December 13, 1988 in Chicago to win the WCWA World Heavyweight Championship, and become the first USWA Unified World Heavyweight Championship.

championship held up immediately after the match due to controversy over interference by Larry Zbyszko on Hennig's behalf, but the championship is returned to Hennig days later after the AWA Championship Committee rules that there was no evidence of interference.

Awarded when Hansen left the AWA.

Wrestled NWA World Heavyweight Champion Ric Flair to a double count-out on October 2, 1985 in Tokyo, Japan.

Awarded the championship when Gagne retired.

Gagne retired from active wrestling while still the champion.

Wrestled WWF Heavyweight Champion Bob Backlund to a double count-out on March 25, 1979 in Toronto, ON.

Wins AWA championship only; also wins Omaha championship from Fritz Von Erich on September 7, 1963 in Omaha, NE to unify the championships.

Wins both the AWA championship and the Omaha championship.

Wins both the AWA championship and the Omaha championship.

Also won Omaha version of World Heavyweight Championship from Verne Gagne on February 15, 1963 in Omaha, Nebraska.

Awarded after O'Connor failed to defend the championship.

Held NWA World Heavyweight Championship, won on January 9, 1959 in St. Louis, Missouri; recognized as the first AWA World Champion in May 1960, but was given 90 days to defend the championship against Verne Gagne or be stripped of the championship.