# 2021 World Table Tennis Championships – Mixed doubles

The mixed doubles competition of the 2021 World Table Tennis Championships was held from 23 to 28 November 2021.
Xu Xin and Liu Shiwen were the defending champions, but neither competed this year.
Wang Chuqin and Sun Yingsha won the title after defeating Tomokazu Harimoto and Hina Hayata 11–2, 11–5, 11–8.

## Seeds

Seeding was based on the ITTF world ranking published on 16 November 2021. Ranking for doubles competitions was determined by combining a pair's individual doubles ranking position to form a combined pair ranking.
* Lin Yun-ju / Cheng I-ching (semifinals)
* Emmanuel Lebesson / Jia Nan Yuan (quarterfinals)
* Wong Chun Ting / Doo Hoi Kem (third round)
* Jang Woo-jin / Jeon Ji-hee (second round)
* Ľubomír Pištej / Barbora Balážová (second round)
* Ovidiu Ionescu / Bernadette Szőcs (third round)
* Aleksandr Khanin / Daria Trigolos (second round)
* Patrick Franziska / Petrissa Solja (third round)
* Sathiyan Gnanasekaran / Manika Batra (quarterfinals)
* Dang Qiu / Nina Mittelham (second round)
* Tomokazu Harimoto / Hina Hayata (final)
* Omar Assar / Dina Meshref (second round)
* Ho Kwan Kit / Lee Ho Ching (quarterfinals)
* Khalid Assar / Yousra Abdel Razek (first round)
* Wang Chuqin / Sun Yingsha (champions)
* Álvaro Robles / María Xiao (quarterfinals)

## Draw
### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final | Final |
| 1 | Lin Yun-ju Cheng I-ching | 8 | 11 | 7 | 9 | | | | | | |
| 15 | Wang Chuqin Sun Yingsha | 11 | 7 | 11 | 11 | | | | | | |
| 15 | Wang Chuqin Sun Yingsha | 11 | 7 | 11 | 11 | | 15 | Wang Chuqin Sun Yingsha | 11 | 11 | 11 |
| | | | | | | | 11 | Tomokazu Harimoto Hina Hayata | 2 | 5 | 8 |
| 11 | Tomokazu Harimoto Hina Hayata | 11 | 11 | 6 | 8 | 11 | 11 | Tomokazu Harimoto Hina Hayata | 2 | 5 | 8 |
| | Lin Gaoyuan Lily Zhang | 9 | 1 | 11 | 11 | 2 | | | | | |

### Top half
#### Section 1

| First round | First round | First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | | | 1 | Lin Cheng | 11 | 11 | 12 | | | | | | | | | | | | | | | |
| | Möregårdh Källberg | 11 | 11 | 11 | | | | Möregårdh Källberg | 6 | 8 | 10 | | | | | | | | | | | | | | | |
| | Hazin Xu | 7 | 7 | 6 | | | | | | | | | | 1 | Lin Cheng | 11 | 11 | 11 | | | | | | | | |
| | Gündüz Altınkaya | 12 | 11 | 11 | | | | | | | | | | | Pang Lin | 8 | 9 | 6 | | | | | | | | |
| | Karakašević Lupulesku | 10 | 9 | 7 | | | | Gündüz Altınkaya | 7 | 13 | 7 | 11 | 10 | | | | | | | | | | | | | |
| | Pang Lin | 8 | 11 | 11 | 9 | 11 | | Pang Lin | 11 | 11 | 11 | 10 | 12 | | | | | | | | | | | | | |
| 14 | K. Assar Helmy | 11 | 8 | 8 | 11 | 7 | | | | | | | | | | | | | | | 1 | Lin Cheng | 11 | 11 | 7 | 11 |
| | | | | | | | | | | | | | | | | | | | | | 13 | Ho Lee | 7 | 7 | 11 | 6 |
| | | | | | | | 13 | Ho Lee | 11 | 7 | 11 | 11 | | | | | | | | | | | | | | |
| | Wang Kukuľková | 11 | 8 | 1 | 7 | | | Badowski Bajor | 5 | 11 | 6 | 9 | | | | | | | | | | | | | | |
| | Badowski Bajor | 7 | 11 | 11 | 11 | | | | | | | | | 13 | Ho Lee | 9 | 14 | 11 | 4 | 11 | | | | | | |
| | Omotayo Akpan | | | | | | | | | | | | | 8 | Franziska Solja | 11 | 12 | 9 | 11 | 9 | | | | | | |
| | Lamadrid Vega | w/o | | | | | | Lamadrid Vega | 5 | 8 | 6 | | | | | | | | | | | | | | | |
| | | | | | | | 8 | Franziska Solja | 11 | 11 | 11 | | | | | | | | | | | | | | | |

#### Section 2

| First round | First round | First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | | | 6 | Ionescu Szőcs | w/o | | | | | | | | | | | | | | | |
| | Cho Shin | 11 | 11 | 11 | | | | Cho Shin | | | | | | | | | | | | | | | | |
| | Kumar Wang | 8 | 3 | 6 | | | | | | | | | 6 | Ionescu Szőcs | 6 | 11 | 8 | 7 | | | | | | |
| | Alto Codina | 4 | 8 | 12 | | | | | | | | | 16 | Robles Xiao | 11 | 8 | 11 | 11 | | | | | | |
| | Lambiet Marchetti | 11 | 11 | 14 | | | | Lambiet Marchetti | 3 | 2 | 5 | | | | | | | | | | | | | |
| | Madrid Silva | 9 | 11 | 8 | 2 | | 16 | Robles Xiao | 11 | 11 | 11 | | | | | | | | | | | | | |
| 16 | Robles Xiao | 11 | 9 | 11 | 11 | | | | | | | | | | | | | | 16 | Robles Xiao | 11 | 6 | 2 | 8 |
| | | | | | | | | | | | | | | | | | | | 15 | Wang C. Sun | 6 | 11 | 11 | 11 |
| | | | | | | | 15 | Wang C. Sun | 11 | 11 | 11 | | | | | | | | | | | | | |
| | Abiodun Edem | 11 | 1 | 11 | 10 | 11 | | Abiodun Edem | 2 | 7 | 6 | | | | | | | | | | | | | |
| | González M. Díaz | 9 | 11 | 6 | 12 | 4 | | | | | | | 15 | Wang C. Sun | 11 | 11 | 7 | 11 | | | | | | |
| | Chen C. Chen S. | 11 | 11 | 11 | | | | | | | | | | Chen C. Chen S. | 7 | 6 | 11 | 6 | | | | | | |
| | Tanviriyavechakul Sawettabut | 7 | 9 | 9 | | | | Chen C. Chen S. | 11 | 11 | 9 | 11 | | | | | | | | | | | | |
| | | | | | | | 4 | Jang Jeon | 8 | 4 | 11 | 3 | | | | | | | | | | | | |

### Bottom half
#### Section 3

| First round | First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | | 3 | Wong Doo | 11 | 11 | 11 | | | | | | | | | | | | | | | |
| Stoyanov Piccolin | 13 | 14 | 11 | | | | Stoyanov Piccolin | 5 | 9 | 6 | | | | | | | | | | | | | | | |
| Gómez Ortega | 11 | 12 | 7 | | | | | | | | | | 3 | Wong Doo | 12 | 11 | 9 | 6 | | | | | | | |
| Uda Shibata | 11 | 9 | 11 | 10 | 12 | | | | | | | | 11 | Harimoto Hayata | 14 | 6 | 11 | 11 | | | | | | | |
| Wang Zhang | 9 | 11 | 6 | 12 | 10 | | Uda Shibata | 11 | 5 | 11 | 6 | 5 | | | | | | | | | | | | | |
| | | | | | | 11 | Harimoto Hayata | 4 | 11 | 7 | 11 | 11 | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | 11 | Harimoto Hayata | 11 | 11 | 7 | 11 |
| | | | | | | | | | | | | | | | | | | | | 9 | Gnanasekaran Batra | 5 | 2 | 11 | 9 |
| | | | | | | 9 | Gnanasekaran Batra | 11 | 3 | 11 | 11 | | | | | | | | | | | | | | |
| Afanador A. Díaz | 11 | 11 | 11 | | | | Afanador A. Díaz | 6 | 11 | 7 | 0 | | | | | | | | | | | | | | |
| Ecseki Madarász | 6 | 5 | 7 | | | | | | | | | | 9 | Gnanasekaran Batra | 15 | 10 | 12 | 11 | 11 | | | | | | |
| Jha Wang M. | 11 | 19 | 11 | | | | | | | | | | | Jha Wang M. | 17 | 12 | 10 | 6 | 7 | | | | | | |
| Sidorenko Tailakova | 6 | 17 | 7 | | | | Jha Wang M. | 11 | 11 | 12 | | | | | | | | | | | | | | | |
| | | | | | | 5 | Pištej Balážová | 8 | 9 | 10 | | | | | | | | | | | | | | | |

#### Section 4

| First round | First round | First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | | | 7 | Khanin Trigolos | 6 | 11 | 6 | | | | | | | | | | | | | | |
| | Skachkov Vorobeva | 7 | 11 | 11 | 9 | 11 | | Skachkov Vorobeva | 11 | 13 | 11 | | | | | | | | | | | | | | |
| | Ishiy Takahashi | 11 | 8 | 6 | 11 | 8 | | | | | | | | | Skachkov Vorobeva | 9 | 12 | 6 | 5 | | | | | | |
| | Lin Zhang | 11 | 11 | 11 | | | | | | | | | | | Lin Zhang | 11 | 10 | 11 | 11 | | | | | | |
| | Apolonia Shao | 6 | 9 | 7 | | | | Lin Zhang | 12 | 11 | 11 | 12 | | | | | | | | | | | | | |
| | Polanský Matelová | 14 | 10 | 11 | 6 | | 10 | Qiu Mittelham | 14 | 8 | 3 | 10 | | | | | | | | | | | | | |
| 10 | Qiu Mittelham | 16 | 12 | 5 | 11 | | | | | | | | | | | | | | | | Lin Zhang | 11 | 9 | 11 | 11 |
| | | | | | | | | | | | | | | | | | | | | 2 | Lebesson Yuan | 9 | 11 | 7 | 7 |
| | | | | | | | 12 | O. Assar Meshref | 11 | 11 | 5 | 9 | 4 | | | | | | | | | | | | |
| | Kherouf Kessaci | 7 | 6 | 6 | | | | Achanta Kamath | 9 | 2 | 11 | 11 | 11 | | | | | | | | | | | | |
| | Achanta Kamath | 11 | 11 | 11 | | | | | | | | | | | Achanta Kamath | 4 | 8 | 5 | | | | | | | |
| | Dyjas Partyka | 11 | 4 | 12 | 8 | 11 | | | | | | | | 2 | Lebesson Yuan | 11 | 11 | 11 | | | | | | | |
| | Cifuentes Arguelles | 8 | 11 | 10 | 11 | 9 | | Dyjas Partyka | 4 | 5 | 3 | | | | | | | | | | | | | | |
| | | | | | | | 2 | Lebesson Yuan | 11 | 11 | 11 | | | | | | | | | | | | | | |