| Event: | Mixed doubles |
| Championship: | 2019 BWF World Championships |
| Dates: | 19–25 August |
| Venue: | St. Jakobshalle |
| Location: | Basel, Switzerland |
| Gold: | Zheng Siwei Huang Yaqiong |
| Gold Nation: | CHN |
| Silver: | Dechapol Puavaranukroh Sapsiree Taerattanachai |
| Silver Nation: | THA |
| Bronze: | Yuta Watanabe Arisa Higashino |
| Bronze Nation: | JPN |
| Bronze2: | Wang Yilü Huang Dongping |
| Bronze2 Nation: | CHN |
| Prev: | 2018 Nanjing |
| Next: | 2021 Huelva |
The mixed doubles tournament of the 2019 BWF World Championships (World Badminton Championships) takes place from 19 to 25 August.
The seeding list is based on the World Rankings from 30 July 2019.[1]
See also: 1 and 1. 
Zheng Siwei / Huang Yaqiong (champions)
See also: 2 and 4. Wang Yilü / Huang Dongping (semifinals)
See also: 3 and 2. 
Yuta Watanabe / Arisa Higashino (semifinals)
See also: 4 and 3. 
Dechapol Puavaranukroh / Sapsiree Taerattanachai (final)
See also: 5 and 2. Chan Peng Soon / Goh Liu Ying (quarterfinals)
See also: 6 and 3. Praveen Jordan / Melati Daeva Oktavianti (third round)
See also: 7 and 1. 
Seo Seung-jae / Chae Yoo-jung (quarterfinals)
See also: 8 and 4. Marcus Ellis / Lauren Smith (third round)
See also: 9 and 4. 
Tang Chun Man / Tse Ying Suet (quarterfinals)
See also: 10 and 1. Hafiz Faizal / Gloria Emanuelle Widjaja (third round)
See also: 11 and 2. Chris Adcock / Gabby Adcock (third round)
See also: 12 and 2. Goh Soon Huat / Shevon Jemie Lai (second round)
See also: 13 and 3. He Jiting / Du Yue (second round)
See also: 14 and 3. Tan Kian Meng / Lai Pei Jing (third round)
See also: 15 and 1. Nipitphon Phuangphuapet / Savitree Amitrapai (third round)
See also: 16 and 4. Lu Kai / Chen Lu (third round)