| Event: | Men's heavyweight |
| Championship: | 2009 World Championships |
| Dates: | 14 October 2009 |
| Venue: | Ballerup Super Arena |
| Competitors: | 53 |
| Nations: | 53 |
| Gold: | Daba Modibo Keïta |
| Gold Nation: | MLI |
| Silver: | Nam Yun-bae |
| Silver Nation: | KOR |
| Silver Variant: | 1997 |
| Bronze: | Hossein Tajik |
| Bronze Nation: | IRI |
| Bronze2: | Arman Chilmanov |
| Bronze2 Nation: | KAZ |
| Prev: | 2007 |
| Next: | 2011 |
See main article: 2009 World Taekwondo Championships.
The Men's Heavyweight competition was a class featured at the 2009 World Taekwondo Championships, and was held at the Ballerup Super Arena in Copenhagen, Denmark on October 14. Heavyweights were over of 87 kilograms in body mass.