The Ms. International female bodybuilding contest was considered to be the second-most prestigious competition for female bodybuilders (second only to the Ms. Olympia competition), from its inception in 1986 through 2013. It was first held in 1986 by the International Federation of BodyBuilders (IFBB.). In 1987 the IFBB allowed the Amateur Athletic Union (AAU) to sanction the Ms. International as an amateur event. In 1988 the contest was again sanctioned by the IFBB. From 1989 on, the contest was part of the Arnold Sports Festival.
The top all-time winners are Iris Kyle with seven titles and followed by Yaxeni Oriquen-Garcia with five titles. The only amateur to win the overall title was Kathy Segal.
In 2013, it was announced that IFBB would drop the Ms. International from 2014 IFBB Pro Schedule.
The first Ms. International was held in 1986, and was sanctioned by the International Federation of BodyBuilders (I.F.B.B.). The contest was held in conjunction with the men’s event, which was called the IFBB Pro World Championship. Ben Weider proclaimed that the top six finishers would qualify for IFBB pro status, and be invited to compete at the 1986 IFBB Pro World in Toronto. The 1986 and 1988 Ms. Internationals were designated as pro-am contests, and top amateurs were also invited to compete. In 1987, the Ms. International was an amateur event sanctioned by the AAU. In 1988, Jim Lorimer and Arnold Schwarzenegger felt the women’s competition should become a regular event along with the men’s.
Since 1989, the men’s Pro World Championship was renamed the Arnold Schwarzenegger Classic and the Ms. International become part of The Arnold Classic Weekend. That same year Tonya Knight had to forfeit both her placing and prize money from the 1988 and 1989 Ms. International when it was found out that she used someone else to take her drug test at the 1989 Ms. Olympia. The first most narrowest victory came in 1991 when Tonya Knight topped Anja Schreiner by a score of 30 to 32. There has been some controversy at the 1992 Ms. International. Anja Schreiner and Paula Bircumshaw both had the same body height, however Paula had much more muscle and weight (162 lbs). The judges regulated her to eighth place and the judges did not, as custom, called out out the top ten competitors on stage before announcing the winners. However this time, they only announced the top six competitors on stage in order to prevent Paula back on stage. The audience rioted over this decision and changed Paula's name. Paula did come back on stage only to give the judges the middle finger. Because of this she was given a year's suspension. In 1996, Kim Chizevsky-Nicholls became the first to win both Ms. International and Ms. Olympia in the same year.