| Event: | Light middleweight |
| Championship: | 2021 AIBA World Boxing Championships |
| Dates: | 27 October – 6 November |
| Venue: | Štark Arena |
| Location: | Belgrade, Serbia |
| Competitors: | 47 |
| Nations: | 47 |
| Gold: | Yurii Zakharieiev |
| Gold Nation: | UKR |
| Silver: | Vadim Musaev |
| Bronze: | Alban Beqiri |
| Bronze Nation: | ALB |
| Bronze2: | Sarkhan Aliyev |
| Bronze2 Nation: | AZE |
| Next: | 2023 |
The Light middleweight competition at the 2021 AIBA World Boxing Championships was held between 27 October and 6 November.[1]