2020 Thomas Cup knockout stage
The knockout stage for the 2020 Thomas Cup in Aarhus, Denmark began on 15 October 2021 with the quarter-finals and ended on 17 October with the final.
Qualified teams
The top two placed teams from each of the four groups qualified for this stage.| Group | Winners | Runners-up |
| A | ||
| B | ||
| C | ||
| D |
Bracket
The draw was conducted on 14 October 2021 after the last match of the group stage.