Judo at the 2000 Summer Olympics – Men's 81 kg
| Judo at the 2000 Summer Olympics  | |||||
|---|---|---|---|---|---|
| Men | Women | ||||
| 60 kg | 48 kg | ||||
| 66 kg | 52 kg | ||||
| 73 kg | 57 kg | ||||
| 81 kg | 63 kg | ||||
| 90 kg | 70 kg | ||||
| 100 kg | 78 kg | ||||
| +100 kg | +78 kg | ||||
These are the results of the Men's 81 kg (also known as Half-Middleweight) competition in judo at the 2000 Summer Olympics in Sydney. A total of 37 men competed in this event, limited to jūdōka whose body weight was less than, or equal to, 81 kilograms. Competition took place in the Sydney Convention and Exhibition Centre on 19 September.
Medalists
| Gold | Makoto Takimoto Japan |
| Silver | Cho In-Chul South Korea |
| Bronze | Nuno Delgado Portugal |
| Bronze | Aleksei Budolin Estonia |
Tournament results
First round
As there were more than 32 qualifiers for the tournament, three first round matches were held to reduce the field to 32 judoka.
-
Dario García (ARG) defeated 
Mehman Azizov (AZE) -
Tsend-Ayuushiin Ochirbat (MGL) defeated 
Salifou Koucka Ouiminga (BUR) -
Gabriel Arteaga (CUB) defeated 
Robert Krawczyk (POL) -
Timothy Slyfield (NZL) defeated 
Majemite Omagbaluwaje (NGR) - Nuno Delgado (POR) defeated
Thierry Vatrican (MON)
Main bracket
The gold and silver medalists were determined by the final match of the main single-elimination bracket.
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Repechage
The losing semifinalists as well as those judoka eliminated in earlier rounds by the four semifinalists of the main bracket advanced to the repechage. These matches determined the two bronze medalists for the event.
As there were 23 qualifiers for the repechage, one match was held to reduce the field to 22 judoka.
-
Francesco Lepre (ITA) defeated Thierry Vatrican (MON)
Then:
| First round | Quarterfinals | Semifinals | Bronze medal finals | ||||||||||
 Seilkhanov (KAZ) |
L |  Paseyro (URU) |
L | ||||||||||
| Seilkhanov (KAZ) |
W | Paseyro (URU) |
W | Delgado (POR) |
W | ||||||||
| García (ARG) |
L | Paseyro (URU) |
W | ||||||||||
 Kwak (PRK) |
L | ||||||||||||
 Arens (NED) |
L | ||||||||||||
| Arens (NED) |
W | Kwak (PRK) |
W | ||||||||||
| Arteaga (CUB) |
L | ||||||||||||
 Wanner (GER) |
L | Budolin (EST) |
W | ||||||||||
 Martínez (PUR) |
L | Budolin (EST) |
W |  Bouras (FRA) |
L | ||||||||
| Wanner (GER) |
W | Budolin (EST) |
W | ||||||||||
 Sarikhani (IRI) |
L | ||||||||||||
 Kelly (AUS) |
L | ||||||||||||
| Lepre (ITA) |
L | Sarikhani (IRI) |
W | ||||||||||
| Kelly (AUS) |
W | ||||||||||||