| Type: | grandslamwc |
| Champ: |  Samir Banerjee |
| Runner: | Victor Lilov |
| Score: | 7–5, 6–3 |
| Before Year: | 2019 |
See main article: 2021 Wimbledon Championships.
Shintaro Mochizuki was the defending champion having won the previous edition in 2019.[1] He participated in the men's singles qualifying, but lost to Tallon Griekspoor in the second round.
Samir Banerjee won the title, defeating Victor Lilov in the final, 7–5, 6–3.