The mixed doubles tournament of the 2013 BWF World Championships (World Badminton Championships) was held from August 5 to 11. Zhang Nan and Zhao Yunlei were the defending champions.

Tontowi Ahmad and Lilyana Natsir defeated Xu Chen and Ma Jin 21–13, 16–21, 22–20 in the final.

Seeds

Xu Chen / Ma Jin (final) Zhang Nan / Zhao Yunlei (semifinals) Tantowi Ahmad / Lilyana Natsir (champion) Joachim Fischer Nielsen / Christinna Pedersen (third round) Chan Peng Soon / Goh Liu Ying (second round) Muhammad Rijal / Debby Susanto (quarter-finals) Sudket Prapakamol / Saralee Thoungthongkam (third round) Robert Mateusiak / Nadieżda Zięba (quarter-finals)

Fran Kurniawan / Shendy Puspa Irawati (second round) Riky Widianto / Richi Puspita Dili (third round) Yoo Yeon-seong / Jang Ye-na (quarter-finals) Michael Fuchs / Birgit Michels (second round) Anders Kristiansen / Julie Houmann (second round) Danny Bawa Chrisnanta / Vanessa Neo Yu Yan (second round) Qiu Zihan / Bao Yixin (second round) Chris Adcock / Gabrielle White (second round)

Draw

Finals

Section 1

Section 2

Section 3

Section 4

References tournamentsoftware.com