| Event: | Men's lightweight |
| Championship: | 2015 World Championships |
| Dates: | 13–14 May 2015 |
| Venue: | Traktor Ice Arena |
| Competitors: | 68 |
| Nations: | 68 |
| Gold: | Masoud Hajji-Zavareh |
| Gold Nation: | IRI |
| Silver: | Nikita Rafalovich |
| Silver Nation: | UZB |
| Bronze: | Albert Gaun |
| Bronze Nation: | RUS |
| Bronze2: | Ismaël Coulibaly |
| Bronze2 Nation: | MLI |
| Prev: | 2013 |
| Next: | 2017 |
See main article: 2015 World Taekwondo Championships.
The men's lightweight is a competition featured at the 2015 World Taekwondo Championships, and was held at the Traktor Ice Arena in Chelyabinsk, Russia on May 13 and May 14.
Lightweights were limited to a maximum of 74 kilograms in body mass.