| Event: | Boys' 100 kg |
| Games: | 2018 Summer Youth |
| Venue: | Parque Polideportivo Roca |
| Date: | 9 October |
| Competitors: | 11 |
| Nations: | 11 |
| Gold: | Bekarys Saduakas |
| Goldnoc: | KAZ |
| Silver: | Ilia Sulamanidze |
| Silvernoc: | GEO |
| Bronze: | Ömer Aydın |
| Bronzenoc: | TUR |
| Bronze2: | Zsombor Vég |
| Bronzenoc2: | HUN |
| Prev: | 2014 |
| Next: | 2026 |
The Boys' 100 kg competition at the 2018 Summer Youth Olympics was held on 9 October, at the Asia Pavilion.
All times are in local time (UTC-3).
Legend