# Judo at the 1980 Summer Olympics – Men's 86 kg

Men's 86 kg competition in Judo at the 1980 Summer Olympics in Moscow, Soviet Union was held at Palace of Sports of the Central Lenin Stadium. The gold medal was won by Jürg Röthlisberger from Switzerland.

## Results
### Pool A

| Round of 32 | Round of 32 | Round of 32 | Round of 16 | Round of 16 | Round of 16 | Quarterfinal | Quarterfinal | Quarterfinal | Semifinal | Semifinal | Semifinal |
| Aleksandr Yatskevich (URS) | Aleksandr Yatskevich (URS) | 5:00 | | | | | | | | | |
| Dambajavyn Tsend–Ayuush (MGL) | Dambajavyn Tsend–Ayuush (MGL) | E | Aleksandr Yatskevich (URS) | Aleksandr Yatskevich (URS) | 5:00 | | | | | | |
| Krzysztof Kurczyna (POL) | Krzysztof Kurczyna (POL) | 5:00 | Krzysztof Kurczyna (POL) | Krzysztof Kurczyna (POL) | E | | | | | | |
| Mark Carew (AUS) | Mark Carew (AUS) | E | | | | Aleksandr Yatskevich (URS) | Aleksandr Yatskevich (URS) | 1:32 | | | |
| José Antonio Cecchini (ESP) | José Antonio Cecchini (ESP) | 5:00 | | | | Slavko Obadov (YUG) | Slavko Obadov (YUG) | E | | | |
| Michel Sanchis (FRA) | Michel Sanchis (FRA) | E | Slavko Obadov (YUG) | Slavko Obadov (YUG) | 5:00 | | | | | | |
| Slavko Obadov (YUG) | Slavko Obadov (YUG) | | José Antonio Cecchini (ESP) | José Antonio Cecchini (ESP) | E | | | | | | |
| Bye | Bye | | | | | | | | Jürg Röthlisberger (SUI) | Jürg Röthlisberger (SUI) | 5:00 |
| Henri-Richard Lobe (CMR) | Henri-Richard Lobe (CMR) | 0:00 | | | | | | | Aleksandr Yatskevich (URS) | Aleksandr Yatskevich (URS) | R |
| Jean Nicolas (BEL) | Jean Nicolas (BEL) | wo | Jürg Röthlisberger (SUI) | Jürg Röthlisberger (SUI) | 2:37 | | | | | | |
| Jürg Röthlisberger (SUI) | Jürg Röthlisberger (SUI) | 5:00 | Henri-Richard Lobe (CMR) | Henri-Richard Lobe (CMR) | R | | | | | | |
| Bertil Ström (SWE) | Bertil Ström (SWE) | R | | | | Jürg Röthlisberger (SUI) | Jürg Röthlisberger (SUI) | 0:00 | | | |
| Milton Estrella (ECU) | Milton Estrella (ECU) | 0:00 | | | | Kostas Papakostas (CYP) | Kostas Papakostas (CYP) | wo | | | |
| Kolyo Boyadzhiev (BUL) | Kolyo Boyadzhiev (BUL) | wo | Kostas Papakostas (CYP) | Kostas Papakostas (CYP) | 5:00 | | | | | | |
| Kostas Papakostas (CYP) | Kostas Papakostas (CYP) | | Milton Estrella (ECU) | Milton Estrella (ECU) | | | | | | | |
| Bye | Bye | | | | | | | | | | |

### Pool B

| Round of 32 | Round of 32 | Round of 32 | Round of 16 | Round of 16 | Round of 16 | Quarterfinal | Quarterfinal | Quarterfinal | Semifinal | Semifinal | Semifinal |
| Walter Carmona (BRA) | Walter Carmona (BRA) | 1:58 | | | | | | | | | |
| Endre Kiss (HUN) | Endre Kiss (HUN) | E | Walter Carmona (BRA) | Walter Carmona (BRA) | 3:02 | | | | | | |
| Akilong Diabone (SEN) | Akilong Diabone (SEN) | 3:17 | Akilong Diabone (SEN) | Akilong Diabone (SEN) | E | | | | | | |
| Mahmoud Saad (SYR) | Mahmoud Saad (SYR) | E | | | | Walter Carmona (BRA) | Walter Carmona (BRA) | 0:53 | | | |
| Pak Jong-chol (PRK) | Pak Jong-chol (PRK) | 5:00 | | | | Mihalache Toma (ROM) | Mihalache Toma (ROM) | E | | | |
| Peter Seisenbacher (AUT) | Peter Seisenbacher (AUT) | E | Mihalache Toma (ROM) | Mihalache Toma (ROM) | 5:00 | | | | | | |
| Mihalache Toma (ROM) | Mihalache Toma (ROM) | | Pak Jong-chol (PRK) | Pak Jong-chol (PRK) | E | | | | | | |
| Bye | Bye | | | | | | | | Isaac Azcuy (CUB) | Isaac Azcuy (CUB) | 1:27 |
| Isaac Azcuy (CUB) | Isaac Azcuy (CUB) | 2:02 | | | | | | | Walter Carmona (BRA) | Walter Carmona (BRA) | R |
| Peter Donnelly (GBR) | Peter Donnelly (GBR) | R | Isaac Azcuy (CUB) | Isaac Azcuy (CUB) | 0:55 | | | | | | |
| Donald Mukahatesho (ZAM) | Donald Mukahatesho (ZAM) | | Donald Muhakatesho (ZAM) | Donald Muhakatesho (ZAM) | R | | | | | | |
| Bye | Bye | | | | | Isaac Azcuy (CUB) | Isaac Azcuy (CUB) | 5:00 | | | |
| Detlef Ultsch (GDR) | Detlef Ultsch (GDR) | 2:10 | | | | Detlef Ultsch (GDR) | Detlef Ultsch (GDR) | R | | | |
| Ibrahim Muzaffer (KUW) | Ibrahim Muzaffer (KUW) | E | Detlef Ultsch (GDR) | Detlef Ultsch (GDR) | 0:50 | | | | | | |
| Franch Casadei (SMR) | Franch Casadei (SMR) | | Franch Casadei (SMR) | Franch Casadei (SMR) | E | | | | | | |
| Bye | Bye | | | | | | | | | | |

### Repechages

| Repechage | Repechage | Repechage | Repechage semifinal | Repechage semifinal | Repechage semifinal | Repechage final | Repechage final | Repechage final |
| Bertil Ström (SWE) | Bertil Ström (SWE) | 5:00 | | | | | | |
| Henri-Richard Lobe (CMR) | Henri-Richard Lobe (CMR) | E | Bertil Ström (SWE) | Bertil Ström (SWE) | 0:00 | | | |
| | | | Kostas Papakostas (CYP) | Kostas Papakostas (CYP) | | | | |
| | | | | | | Aleksandr Yatskevich (URS) | Aleksandr Yatskevich (URS) | 4:24 |
| | | | | | | Bertil Ström (SWE) | Bertil Ström (SWE) | |
| Repechage | Repechage | Repechage | Repechage semifinal | Repechage semifinal | Repechage semifinal | Repechage final | Repechage final | Repechage final |
| Peter Donnelly (GBR) | Peter Donnelly (GBR) | 0:16 | | | | | | |
| Donald Muhakatesho (ZAM) | Donald Muhakatesho (ZAM) | E | Detlef Ultsch (GDR) | Detlef Ultsch (GDR) | 5:00 | | | |
| | | | Peter Donnelly (GBR) | Peter Donnelly (GBR) | E | | | |
| | | | | | | Detlef Ultsch (GDR) | Detlef Ultsch (GDR) | 7:00 |
| | | | | | | Walter Carmona (BRA) | Walter Carmona (BRA) | |

### Final

| Final | Final |
| Jürg Röthlisberger (SUI) | 7:00 |
| Isaac Azcuy (CUB) | |