# Judo at the 2020 Summer Olympics – Men's 66 kg

The men's 66 kg competition in judo at the 2020 Summer Olympics in Tokyo was held on 25 July 2021 at the Nippon Budokan.

## Results
### Finals

| Semi-finals | Semi-finals | Gold medal | Gold medal |
| Daniel Cargnin (BRA) | 00 |
| 4 Hifumi Abe (JPN) | 10 | | |
| 4 Hifumi Abe (JPN) | 10 | 4 Hifumi Abe (JPN) | 01 |
| | | 3 Vazha Margvelashvili (GEO) | 00 |
| 2 An Ba-ul (KOR) | 00 | 3 Vazha Margvelashvili (GEO) | 00 |
| 3 Vazha Margvelashvili (GEO) | 01 | | |

### Repechage

| Repechage | Repechage | Bronze medal | Bronze medal |
| | | 2 An Ba-ul (KOR) | 10 |
| | | 1 Manuel Lombardo (ITA) | 00 |
| 1 Manuel Lombardo (ITA) | 10 | 1 Manuel Lombardo (ITA) | 00 |
| 5 Yondonperenlein Baskhüü (MGL) | 00 | | |
| Repechage | Repechage | Bronze medal | Bronze medal |
| | | Daniel Cargnin (BRA) | 01 |
| | | 6 Baruch Shmailov (ISR) | 00 |
| Adrian Gomboc (SLO) | 00 | 6 Baruch Shmailov (ISR) | 00 |
| 6 Baruch Shmailov (ISR) | 01 | | |

### Pool A

| Round of 32 | Round of 32 | Round of 16 | Round of 16 | Quarter-finals | Quarter-finals |
| | | 1 Manuel Lombardo (ITA) | 01 |
| | | Yerlan Serikzhanov (KAZ) | 00 |
| Orkhan Safarov (AZE) | 00 | Yerlan Serikzhanov (KAZ) | 00 |
| Yerlan Serikzhanov (KAZ) | 01 | | | | |
| Yerlan Serikzhanov (KAZ) | 01 | | | 1 Manuel Lombardo (ITA) | 00 |
| | | | | Daniel Cargnin (BRA) | 01 |
| 8 Sardor Nurillaev (UZB) | 00 | | | Daniel Cargnin (BRA) | 01 |
| Denis Vieru (MDA) | 10 | | | | |
| Denis Vieru (MDA) | 10 | Denis Vieru (MDA) | 00 | | |
| | | Daniel Cargnin (BRA) | 01 |
| Daniel Cargnin (BRA) | 10 | Daniel Cargnin (BRA) | 01 |
| Mohamed Abdelmawgoud (EGY) | 00 | | |

### Pool B

| Round of 32 | Round of 32 | Round of 16 | Round of 16 | Quarter-finals | Quarter-finals |
| | | 4 Hifumi Abe (JPN) | 10 |
| | | Kilian Le Blouch (FRA) | 00 |
| Kilian Le Blouch (FRA) | 10 | Kilian Le Blouch (FRA) | 00 |
| Ismael Alhassane (NIG) | 00 | | | | |
| Ismael Alhassane (NIG) | 00 | | | 4 Hifumi Abe (JPN) | 01 |
| | | | | 5 Yondonperenlein Baskhüü (MGL) | 00 |
| | | 5 Yondonperenlein Baskhüü (MGL) | 10 | | |
| | | Dzmitry Minkou (BLR) | 00 |
| Dzmitry Minkou (BLR) | 10 | Dzmitry Minkou (BLR) | 00 |
| Ayoub El-Idrissi (QAT) | 00 | | |

### Pool C

| Round of 32 | Round of 32 | Round of 16 | Round of 16 | Quarter-finals | Quarter-finals |
| | | 2 An Ba-ul (KOR) | 10 |
| | | Ian Sancho Chinchila (CRC) | 00 |
| Ian Sancho Chinchila (CRC) | 11 | Ian Sancho Chinchila (CRC) | 00 |
| Indrit Cullhaj (ALB) | 00 | | | | |
| Indrit Cullhaj (ALB) | 00 | | | 2 An Ba-ul (KOR) | 10 |
| | | | | Adrian Gomboc (SLO) | 00 |
| 7 Alberto Gaitero Martin (ESP) | 00 | | | Adrian Gomboc (SLO) | 00 |
| Georgii Zantaraia (UKR) | 10 | | | | |
| Georgii Zantaraia (UKR) | 10 | Georgii Zantaraia (UKR) | 00 | | |
| | | Adrian Gomboc (SLO) | 01 |
| Adrian Gomboc (SLO) | 10 | Adrian Gomboc (SLO) | 01 |
| Steven Mungandu (ZAM) | 00 | | |

### Pool D

| Round of 32 | Round of 32 | Round of 16 | Round of 16 | Quarter-finals | Quarter-finals |
| | | 3 Vazha Margvelashvili (GEO) | 01 |
| | | Yakub Shamilov (ROC) | 00 |
| Yakub Shamilov (ROC) | 10 | Yakub Shamilov (ROC) | 00 |
| Sebastian Seidl (GER) | 00 | | | | |
| Sebastian Seidl (GER) | 00 | | | 3 Vazha Margvelashvili (GEO) | 10 |
| | | | | 6 Baruch Shmailov (ISR) | 00 |
| 6 Baruch Shmailov (ISR) | 11 | | | 6 Baruch Shmailov (ISR) | 00 |
| Kevin Loforte (MOZ) | 00 | | | | |
| Kevin Loforte (MOZ) | 00 | 6 Baruch Shmailov (ISR) | 01 | | |
| | | Nathan Katz (AUS) | 00 |
| Juan Postigos (PER) | 00 | Nathan Katz (AUS) | 00 |
| Nathan Katz (AUS) | 10 | | |