History
The strawweight class, also known as minimumweight and mini-flyweight, was established by the International Boxing Federation (IBF) in June of 1987. The World Boxing Council (WBC) added it later that year; the World Boxing Association (WBA) and World Boxing Organization (WBO) both added the division in 1988.
The lists below include champions of those four organizations.
Only those bouts are included in which the championship changed hands or the championships of two or more governing bodies was unified.
