Samuel Muchnick was an American professional wrestling promoter from St. Louis, Missouri. He is often regarded as wrestling's equivalent of Pete Rozelle, and he was instrumental in establishing the National Wrestling Alliance, which became the industry's top governing body, in 1948. Muchnick served as the NWA's president from 1950 to 1960 and again from 1963 to 1975. He operated the St. Louis Wrestling Club, one of the primary members of the NWA, based in St. Louis.

The National Wrestling Alliance (NWA) is an American professional wrestling promotion and governing body owned by Billy Corgan and operated by its parent company Lightning One, Inc.