Below is a list of National Amateur Boxing Lightweight Champions, also known as United States Amateur Champions, along with the state or region which they represented. The weight class was contested at 135 pounds between 1888 and 1951. It has been contested at 132 pounds, since 1952. The United States National Boxing Championships bestow the title of United States Amateur Champion on amateur boxers for winning the annual national amateur boxing tournament organized by USA Boxing, the national governing body for Olympic boxing and is the United States' member organization of the International Amateur Boxing Association (AIBA). It is one of the four premier amateur boxing tournaments, the others being the National Golden Gloves Tournament, which crowns its own amateur lightweight champion, t