The qualification for the 2020 men's Olympic beach volleyball tournament allocated quota places to 24 teams. A maximum of two teams per country are allowed to qualify.[1]
| width=34% | Means of qualification | width=23% | Date! | width=20% | Venue! | width=7% | Vacancies! | width=16% | Qualified |
|---|---|---|---|---|---|---|---|---|---|
| Host nation[2] | 1 | ||||||||
| 2019 World Championships | 28 June – 7 July 2019 | Hamburg | 1 | ||||||
| 2019 FIVB Olympic Qualification Tournament | 18–22 September 2019 |  Haiyang | 2 | ||||||
| FIVB Beach Volleyball Olympic Ranking[3] | 13 June 2021 | Lausanne | 15 | ||||||
| 2018–2020 CEV Continental Cup Final | 23–26 June 2021 | The Hague | 1 | ||||||
| 2018–2020 AVC Continental Cup Final | 25–27 June 2021 |  Nakhon Pathom | 1 | ||||||
| 2018–2020 CAVB Continental Cup Final | 25–27 June 2021 |  Agadir | 1 | ||||||
| 2018–2020 NORCECA Continental Cup Final | 25–27 June 2021 |  Colima | 1 | ||||||
| 2018–2020 CSV Continental Cup Final | 26–27 June 2021 | Santiago | 1 | ||||||
| Total | 24 | ||||||||
FIVB reserved a vacancy for the Olympics host country to participate in the tournament.
The top two teams from the FIVB Beach Volleyball Olympic Qualification Tournament qualified.
See main article: 2019 Beach Volleyball World Championships.
One team qualified from the 2019 World Championships.
15 teams qualified from the Olympic Ranking.
| Top 25 Rankings as of June 13, 2021 | |||||
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One winner from each Continental Cup qualified for the Olympics.
See main article: article and 2018–2020 CAVB Beach Volleyball Continental Cup.
See main article: article and 2018–2020 AVC Beach Volleyball Continental Cup.
See main article: article and 2018–2020 CEV Beach Volleyball Continental Cup.
See main article: article and 2018–2020 NORCECA Beach Volleyball Continental Cup.
See main article: article and 2018–2020 CSV Beach Volleyball Continental Cup.