| Event: | Light heavyweight |
| Championship: | 2021 AIBA World Boxing Championships |
| Dates: | 26 October – 6 November |
| Venue: | Štark Arena |
| Location: | Belgrade, Serbia |
| Competitors: | 41 |
| Nations: | 41 |
| Gold: | Robby Gonzales |
| Gold Nation: | USA |
| Silver: | Aliaksei Alfiorau |
| Silver Nation: | BLR |
| Bronze: | Savelii Sadoma |
| Bronze2: | Vladimir Mironchikov |
| Bronze2 Nation: | SRB |
| Prev: | 2019 |
| Next: | 2023 |
The Light heavyweight competition at the 2021 AIBA World Boxing Championships was held between 26 October and 6 November.[1]