| Event: | Mixed Doubles |
| Championship: | 2013 BWF World Championships |
| Dates: | – |
| Venue: | Tianhe Sports Center |
| Location: | Guangzhou, China |
| Gold: | Tontowi Ahmad Lilyana Natsir |
| Gold Nation: | INA |
| Silver: | Xu Chen Ma Jin |
| Silver Nation: | CHN |
| Bronze: | Shin Baek-cheol Eom Hye-won |
| Bronze Nation: | KOR |
| Bronze2: | Zhang Nan Zhao Yunlei |
| Bronze2 Nation: | CHN |
| Prev: | 2011 London |
| Next: | 2014 Copenhagen |
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.
See also: 1 and 1. 
Xu Chen / Ma Jin (final)
See also: 2 and 4. Zhang Nan / Zhao Yunlei (semifinals)
See also: 3 and 3. Tantowi Ahmad / Lilyana Natsir (champion)
See also: 4 and 2. Joachim Fischer Nielsen / Christinna Pedersen (third round)
See also: 5 and 3. Chan Peng Soon / Goh Liu Ying (second round)
See also: 6 and 2. Muhammad Rijal / Debby Susanto (quarter-finals)
See also: 7 and 4. 
Sudket Prapakamol / Saralee Thoungthongkam (third round)
See also: 8 and 1. 
Robert Mateusiak / Nadieżda Zięba (quarter-finals)
See also: 9 and 3. Fran Kurniawan / Shendy Puspa Irawati (second round)
See also: 10 and 4. Riky Widianto / Richi Puspita Dili (third round)
See also: 11 and 4. 
Yoo Yeon-seong / Jang Ye-na (quarter-finals)
See also: 12 and 1. Michael Fuchs / Birgit Michels (second round)
See also: 13 and 3. Anders Kristiansen / Julie Houmann (second round)
See also: 14 and 2. Danny Bawa Chrisnanta / Vanessa Neo Yu Yan (second round)
See also: 15 and 1. Qiu Zihan / Bao Yixin (second round)
See also: 16 and 2. Chris Adcock / Gabrielle White (second round)