| Event: | Women's singles |
| Championship: | 2011 BWF World Championships |
| Dates: | – |
| Venue: | Wembley Arena |
| Location: | London, England |
| Gold: | Wang Yihan |
| Gold Nation: | CHN |
| Silver: | Cheng Shao-chieh |
| Silver Nation: | TPE |
| Bronze: | Juliane Schenk |
| Bronze Nation: | GER |
| Bronze2: | Wang Xin |
| Bronze2 Nation: | CHN |
| Prev: | 2010 Paris |
| Next: | 2013 Guangzhou |
The women's singles tournament of the 2011 BWF World Championships (World Badminton Championships) was held from August 8 to 14. Wang Lin was the defending champion.
Wang Yihan won the final against Cheng Shao-Chieh 21–15, 21–10.
Wang Shixian (quarterfinals) Wang Yihan (champion) Wang Xin (semifinals) Jiang Yanjiao (third round)
Saina Nehwal (quarterfinals)
Bae Youn-joo (second round)
Porntip Buranaprasertsuk (third round) Ratchanok Intanon (third round) Sung Ji-hyun (third round)
Yip Pui Yin (third round, retired)
Eriko Hirose (second round) Sayaka Sato (third round)