| Competition: | 2018 Judo World Masters |
| Venue: | Guangzhou Gymnasium, Guangzhou |
| Location: | Guangzhou, China |
| Dates: | 15–16 December 2018 |
| Competitors: | 231 |
| Nations: | 53 |
| Prev: | 2017 Saint Petersburg |
| Next: | 2019 Guangzhou |
The 2018 Judo World Masters were held in Guangzhou, China, from 15 to 16 December 2018.
| Extra-lightweight (-60 kg) | |||
| Half-lightweight (-66 kg) | |||
| Lightweight (-73 kg) | |||
| Half-middleweight (-81 kg) | |||
| Middleweight (-90 kg) | |||
| Half-heavyweight (-100 kg) | |||
| Heavyweight (+100 kg) | |||
| Extra-lightweight (-48 kg) | |||
| Half-lightweight (-52 kg) | |||
| Lightweight (-57 kg) | |||
| Half-middleweight (-63 kg) | |||
| Middleweight (-70 kg) | |||
| Half-heavyweight (-78 kg) | |||
| Heavyweight (+78 kg) | |||