Lex Luger 

(Inaugural-7/14/91)

Won the NWA United States Championship. Recognized as the WCW United States Champion when WCW left the NWA.

Vacant 

(7/14/91-8/25/91)

Title was vacated when Lex Luger won the WCW World Heavyweight Championship.

Sting 

(8/25/91-11/19/91)

Defeated Steve Austin in the finals of a tournament for the vacant title.

Rick Rude 

(November 19, 1991-Present)

Defeated Sting at Clash of the Champions XVII.