| Event: | Men's middleweight |
| Championship: | 2017 World Championships |
| Dates: | 28–29 June 2017 |
| Venue: | Taekwondowon |
| Competitors: | 49 |
| Nations: | 49 |
| Gold: | Alexander Bachmann |
| Gold Nation: | GER |
| Silver: | Vladislav Larin |
| Silver Nation: | RUS |
| Bronze: | In Kyo-don |
| Bronze Nation: | KOR |
| Bronze2: | Ivan Trajkovič |
| Bronze2 Nation: | SLO |
| Prev: | 2015 |
| Next: | 2019 |
See main article: 2017 World Taekwondo Championships.
The men's middleweight is a competition featured at the 2017 World Taekwondo Championships, and was held at the Taekwondowon in Muju County, South Korea on June 28 and June 29. Middleweights were limited to a maximum of 87 kilograms in body mass.