The Iowa version of the NWA World Junior Heavyweight Championship was a professional wrestling championship that was promoted by the Iowa-based National Wrestling Alliance (NWA) promotion between 1943 and 1949. The championship was competed for by junior heavyweight wrestlers. The inaugural champion was Ken Fenelon, who was awarded the title in May 1943.
Both the championship and the promotion predate the more famous National Wrestling Alliance (NWA) that was founded in May 1948 as a governing body and interpromotional alliance of wrestling promotions in the midwestern United States. Both the Iowa-based NWA promotion and the NWA governing body were founded by Paul "Pinkie" George. At the founding meeting of the NWA governing body, Billy Goelz, George's reigning World Junior Heavyweight Champion in Iowa, was recognized as the world champion of the new alliance. As a result, the Iowa-based championship was retired and replaced with the main NWA title. Goelz lost recognition from the NWA in November 1949, with Leroy McGuirk, world champion of the National Wrestling Association, being selected as the new champion. Goelz, however, continued to be recognized as champion in Iowa. On December 28, 1949, McGuirk defeated Goelz to unify the Iowa championship into his world championship. The NWA recognizes holders of the Iowa version of the NWA World Junior Heavyweight Championship as former champions of the main NWA title.