2011 BWF World Championships – Mixed doubles

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.

Seeds
• # 🇨🇳 Zhang Nan / Zhao Yunlei (champions)

• # Tantowi Ahmad / Lilyana Natsir (semifinals)

• # 🇹🇭 Sudket Prapakamol / Saralee Thoungthongkam (second round)

• # 🇨🇳 Tao Jiaming / Tian Qing (quarterfinals)

• # Joachim Fischer Nielsen / Christinna Pedersen (quarterfinals)

• # 🇨🇳 Xu Chen / Ma Jin (semifinals, retired)

• # Chen Hung-ling / Cheng Wen-hsing (quarterfinals)

• # 🇹🇭 Songphon Anugritayawon / Kunchala Voravichitchaikul (second round)

• # Fran Kurniawan / Pia Zebadiah Bernadeth (second round)

• # 🏴󠁧󠁢󠁥󠁮󠁧󠁿 Nathan Robertson / Jenny Wallwork (second round)

• # Lee Sheng-mu / Chien Yu-chin(third round)

• # Thomas Laybourn / Kamilla Rytter Juhl (third round)

• # 🇩🇪 Michael Fuchs / Birgit Michels (third round)

• # 🇵🇱 Robert Mateusiak / Nadieżda Zięba (third round)

• # 🇯🇵 Shintaro Ikeda / Reiko Shiota (third round)

• # 🇮🇳 Valiyaveetil Diju / Jwala Gutta (third round)