| Event: | Mixed Doubles |
| Championship: | 2011 BWF World Championships |
| Dates: | – |
| Venue: | Wembley Arena |
| Location: | London, England |
| Gold: | Zhang Nan Zhao Yunlei |
| Gold Nation: | CHN |
| Silver: | Chris Adcock Imogen Bankier |
| Silver Nation: | GBR |
| Bronze: | Xu Chen Ma Jin |
| Bronze Nation: | CHN |
| Bronze2: | Tontowi Ahmad Lilyana Natsir |
| Bronze2 Nation: | INA |
| Prev: | 2010 Paris |
| Next: | 2013 Guangzhou |
The mixed doubles tournament of the 2011 BWF World Championships (World Badminton Championships) was held from August 8 to 14. Zheng Bo and Ma Jin were the defending champions.
Zhang Nan and Zhao Yunlei won the title after defeating Chris Adcock and Imogen Bankier 21–15, 21–7 in the final.