The 2011 BWF World Championships was the 19th tournament of the World Badminton Championships, a global tournament in the sport of badminton.

[1] China clean swept all the titles for a record third time and became the first nation to successfully defend all the titles won from the previous edition.

[2] The draw was held on 25 July at Kuala Lumpur, Malaysia.

*   Host nation (England)347 players from 48 countries participated at this year's edition.

[5] The number in parentheses indicate the player contributed by each country.