| Event: | Men's singles |
| Championship: | 2021 Summer World University Games |
| Dates: | – |
| Venue: | Shuangliu Sports Centre Gymnasium |
| Location: | Chengdu, China |
| Competitors: | 61 |
| Nations: | 29 |
| Gold: | Wang Zhengxing |
| Goldnoc: | CHN |
| Silver: | Panitchaphon Teeraratsakul |
| Silvernoc: | THA |
| Bronze: | Ko Shing Hei |
| Bronzenoc: | HKG |
| Bronze2: | Toma Noda |
| Bronzenoc2: | JPN |
| Prev: | 2017 |
See main article: Badminton at the 2021 Summer World University Games.
The men's singles badminton event at the 2021 Summer World University Games was held from 4 to 7 August at the Shuangliu Sports Centre Gymnasium in Chengdu, China.
See also: 1 and 1. (Quarter-finals)
See also: 2 and 4. (Second round)
See also: 3 and 2. (Quarter-finals)
See also: 4 and 3. (Third round)
See also: 5 and 4. (Quarter-finals)
See also: 6 and 1. (Third round)
See also: 7 and 3. (Second round)
The draw published on 2 August 2023.[1]