| Date | R | Home v Away | - |
|---|---|---|---|
| 08/08 07:30 | 1 |
Greece v Serbia
|
10-13 |
| 08/08 04:40 | 20 |
Hungary v Spain
|
9-5 |
| 08/08 02:00 | 31 |
Croatia v USA
|
14-11 |
| 08/08 00:30 | 32 |
Montenegro v Italy
|
17-18 |
| 08/06 10:50 | 2 |
Serbia v Spain
|
10-9 |
| 08/06 09:20 | 2 |
Italy v USA
|
6-7 |
| 08/06 06:30 | 2 |
Greece v Hungary
|
9-6 |
| 08/06 05:00 | 2 |
Montenegro v Croatia
|
10-12 |
| 08/04 10:50 | 3 |
Hungary v Croatia
|
15-11 |
| 08/04 09:20 | 3 |
Italy v Serbia
|
6-10 |
| 08/04 06:30 | 3 |
Greece v Montenegro
|
10-4 |
| 08/04 05:00 | 3 |
USA v Spain
|
8-12 |
| 08/02 10:50 | 5 |
Australia v Kazakhstan
|
15-7 |
| 08/02 09:20 | 5 |
Japan v South Africa
|
24-9 |
| 08/02 06:30 | 5 |
Spain v Croatia
|
8-4 |
| 08/02 05:00 | 5 |
Serbia v Montenegro
|
13-6 |
| 08/02 02:30 | 5 |
Greece v USA
|
14-5 |
| 08/02 01:00 | 5 |
Hungary v Italy
|
5-5 |
| 07/31 10:50 | 4 |
South Africa v Greece
|
5-28 |
| 07/31 09:20 | 4 |
Italy v Japan
|
16-8 |
| 07/31 06:30 | 4 |
Croatia v Serbia
|
14-12 |
| 07/31 05:00 | 4 |
USA v Hungary
|
8-11 |
| 07/31 02:30 | 4 |
Australia v Spain
|
5-16 |
| 07/31 01:00 | 4 |
Montenegro v Kazakhstan
|
19-12 |
| 07/29 10:50 | 3 |
Serbia v Australia
|
14-8 |
| 07/29 09:20 | 3 |
Greece v Japan
|
10-9 |
| 07/29 06:30 | 3 |
Croatia v Montenegro
|
13-8 |
| 07/29 05:00 | 3 |
USA v Italy
|
11-12 |
| 07/29 02:30 | 3 |
Spain v Kazakhstan
|
16-4 |
| 07/29 01:00 | 3 |
Hungary v South Africa
|
23-1 |
The men's tournament of water polo at the 2020 Summer Olympics at Tokyo, Japan began on 25 July and ended on 8 August 2021. It was held at the Tokyo Tatsumi International Swimming Center. It was the 27th official appearance of the tournament, which was not held in 1896 and was a demonstration sport in 1904 but otherwise had been held at every Olympics.
On 24 March 2020, the Olympics were postponed to 2021 due to the COVID-19 pandemic. Because of this pandemic, the games are played behind closed doors.
Serbia won their second consecutive gold medal after a finals win over Greece, while Hungary captured the bronze medal.
The medals for the competition were presented by Nenad Lalović, IOC Executive Board Member; Serbia and the medalists' bouquets were presented by Andrey Kryukov, Kazakhstan; FINA Bureau Member.