| Event: | Men's 80kg |
| Games: | 2012 Summer |
| Venue: | ExCeL Exhibition Centre |
| Date: | 10 August |
| Competitors: | 16 |
| Nations: | 16 |
| Gold: | Sebastián Crismanich |
| Goldnoc: | ARG |
| Silver: | Nicolás García |
| Silvernoc: | ESP |
| Bronze: | Lutalo Muhammad |
| Bronzenoc: | GBR |
| Bronze2: | Mauro Sarmiento |
| Bronzenoc2: | ITA |
| Prev: | 2008 |
| Next: | 2016 |
The men's 80 kg competition at the 2012 Summer Olympics was held on 10 August, at the ExCeL Exhibition Centre.
The main bracket consisted of a single elimination tournament, culminating in the gold medal match. Two bronze medals were awarded at the Taekwondo competitions. A repechage was used to determine the bronze medal winners. Every competitor who lost to one of the two finalists competed in the repechage, another single-elimination competition. Each semifinal loser faced the last remaining repechage competitor from the opposite half of the bracket in a bronze medal match.[1]
All times are British Summer Time (UTC+1)
On 13 July 2012, the World Taekwondo Federation released the provisional draw which included the top eight seeds for the competition.[2] The remainder of the qualified athletes were randomly drawn on 6 August 2012.[3]