The men's singles tournament of the 2011 BWF World Championships (World Badminton Championships) was held from August 8 to 14. Chen Jin was the defending champion. Lin Dan defeated Lee Chong Wei 20–22, 21–14, 23–21 in the final.
Seeds
Lee Chong Wei (final) Lin Dan (champion) Peter Gade (semi-finals) Taufik Hidayat (second round) Chen Long (first round) Chen Jin (semi-finals) Nguyễn Tiến Minh (quarter-finals) Du Pengyu (third round) Park Sung-hwan (third round) Boonsak Ponsana (third round) Sho Sasaki (quarter-finals) Lee Hyun-il (third round) Simon Santoso (third round) Marc Zwiebler (second round) Kenichi Tago (first round) Hu Yun (first round)
Draw
Finals
Section 1
Section 2
Section 3
Section 4
References Main Draw