The National Wrestling Association (NWA) World Middleweight Championship was a professional wrestling title sanctioned by the National Wrestling Association, an offshoot of the National Boxing Association (NBA). The title pre-dated the NWA by several decades, its earliest champion being recorded as Edwin Bibby in 1886, but was nonetheless recognized by the Association from 1928 through 1940, after which its lineage was adopted by EMLL in Mexico and retroactively connected to the National Wrestling Alliance's World Middleweight Championship. The title had a weight range of 155 lb (70 kg) to 160 lb (73 kg).