|Dates||22 July - 7 August 2021 (expected)|
|Teams||16 (from 6 confederations)|
|Venue(s)||6 (in 6 host cities)|
The men's football tournament at the 2020 Summer Olympics was to be held from 23 July to 8 August 2020. Due to the COVID-19 pandemic, the games have been postponed to 23 July to 8 August 2021. However, their official name remains 2020 Summer Olympics.  It will be the 27th edition of the men's Olympic football tournament. Together with the women's competition, the 2020 Summer Olympics football tournament will be held in six cities in Japan, including Olympic host city Tokyo. The final will be hosted at the International Stadium in Yokohama. Teams participating in the men's competition are restricted to under-24 players (born on or after 1 January 1997) with a maximum of three overage players allowed. The men's tournament is typically restricted to under-23 players, though following the postponement of the Olympics by a year, FIFA decided to maintain the restriction of players born on or after 1 January 1997.
Brazil are the defending champions.
The match schedule of the men's tournament as of 5 December 2018.
|G||Group stage||¼||Quarter-finals||½||Semi-finals||B||Bronze medal match||F||Gold medal match|
|22 Thu||23 Fri||24 Sat||25 Sun||26 Mon||27 Tue||28 Wed||29 Thu||30 Fri||31 Sat||1 Sun||2 Mon||3 Tue||4 Wed||5 Thu||6 Fri||7 Sat|
In addition to host nation Japan, 15 men's national teams will qualify from six separate continental confederations. The Organising Committee for FIFA Competitions ratified the distribution of spots at their meeting on 14 September 2017.
|Means of qualification||Ref.||Dates1||Venue1||Berths||Qualified|
|Host country||||7 September 2013||N/A||1||Japan|
|2019 UEFA European Under-21 Championship||||16-30 June 2019|| Italy
|2019 OFC Men's Olympic Qualifying Tournament||||21 September - 5 October 2019||Fiji||1||New Zealand|
|2019 Africa U-23 Cup of Nations||||8-22 November 2019||Egypt||3|| Egypt|
|2020 AFC U-23 Championship||||8-26 January 2020||Thailand||3|| Australia|
|2020 CONMEBOL Pre-Olympic Tournament||||18 January - 9 February 2020||Colombia||2|| Argentina|
|2020 CONCACAF Olympic Qualifying Championship||||18-30 March 2021||Mexico||2|
The tournament will be held in six venues across six cities:
The men's tournament is an international tournament with restrictions on age: players must be born on or after 1 January 1997, with three overage players allowed for each squad in the final tournament. Each team has to submit a squad of 18 players, two of whom must be goalkeepers. Each team can also name a list of four alternate players, who can replace any player in the squad in case of injury during the tournament.
The 16 teams will be drawn into four groups of four teams. The hosts Japan are automatically seeded into Pot 1 and assigned to position A1, while the remaining teams are seeded into their respective pots based on their results in the last five Olympics (more recent tournaments weighted more heavily), with bonus points awarded to confederation champions. No group can contain more than one team from each confederation.
The competing countries will be divided into four groups of four teams, denoted as groups A, B, C and D. Teams in each group will play one another in a round-robin basis, with the top two teams of each group advancing to the quarter-finals.
The ranking of teams in the group stage is determined as follows:
|1||Japan (H)||0||0||0||0||0||0||0||0||Advance to knockout stage|
|1||B1||0||0||0||0||0||0||0||0||Advance to knockout stage|
|1||C1||0||0||0||0||0||0||0||0||Advance to knockout stage|
|1||D1||0||0||0||0||0||0||0||0||Advance to knockout stage|
In the knockout stage, if a match is level at the end of normal playing time, extra time is played (two periods of 15 minutes each) and followed, if necessary, by a penalty shoot-out to determine the winner.
|Quarter-finals||Semi-finals||Gold medal match|
|31 July - Kashima|
|Winner Group A|
|3 August - Saitama|
|Runner-up Group B|
|Winner Match 25|
|31 July - Rifu|
|Winner Match 27|
|Winner Group C|
|7 August - Yokohama|
|Runner-up Group D|
|Winner Match 29|
|31 July - Yokohama|
|Winner Match 30|
|Winner Group B|
|3 August - Kashima|
|Runner-up Group A|
|Winner Match 26|
|31 July - Saitama|
|Winner Match 28||Bronze medal match|
|Winner Group D|
|6 August - Saitama|
|Runner-up Group C|
|Loser Match 29|
|Loser Match 30|