The BWF World Championships, formerly known as IBF World Championships, and also known as the World Badminton Championships, is a badminton tournament sanctioned by Badminton World Federation (BWF). The tournament is one of the most prestigious in badminton, offering the most ranking points, together with the Summer Olympics badminton tournaments which was introduced in 1992. The winners of this tournament are also crowned as "World Champions" of the sport, and are awarded a gold medal.
The tournament started in 1977 and was held once every three years until 1983. However, the IBF (International Badminton Federation) faced difficulty in hosting the first two events as the World Badminton Federation (which later merged with the IBF to form one badminton federation) hosted the same tournament a year after the IBF World Championships with the same goals.
Since 1985, the tournament became biennial and played once every two years until 2005. Starting 2006, the tournament was changed to an annual event on the BWF calendar. The tournament is not held during the Summer Olympics years to avoid schedule conflicts.