The NWA World Junior Heavyweight Championship is a professional wrestling world championship and secondary title in the National Wrestling Alliance that was for the lighter wrestlers. It started in 1945 and still exists today making it the second longest continuous championship in history. The title was unified with the National Wrestling Association World Junior Heavyweight Championship|National Boxing/Wrestling Association's World Junior Heavyweight Championship in 1949. To qualify to win this championship, wrestlers must weigh 220 lb or under.