Qualification Summary
Each National Olympic Committee can enter a maximum of one team in each event (12 men and 12 women). As hosts, Japan was given the maximum quota. The remaining quotas will be decided through qualification events, specifically, the 2018/19 World Rugby Sevens Series, the 2019 continental qualification tournaments and the 2020 Final Olympic Repechage Tournament.
Qualified Nations
Qualification events are listed in hierarchical order.
Men’s Tournament
| Qualification Event | Places | Qualified Nations |
|---|---|---|
| Host Nation | 1 |  Japan |
| 2018/19 World Rugby Sevens Series | 4 | |
| 2019 African Qualification Tournament | 1 | |
| 2019 Asian Qualification Tournament | 1 | |
| 2019 European Qualification Tournament | 1 | |
| 2019 North American Qualification Tournament | 1 | |
| 2019 Oceania Qualification Tournament | 1 | |
| 2019 South American Qualification Tournament | 1 | |
| 2020 Final Olympic Repechage Tournament | 1 |
Women’s Tournament
| Qualification Event | Places | Qualified Nations |
|---|---|---|
| Host Nation | 1 | Japan |
| 2018/19 World Rugby Sevens Series | 4 | |
| 2019 African Qualification Tournament | 1 | |
| 2019 Asian Qualification Tournament | 1 | |
| 2019 European Qualification Tournament | 1 | |
| 2019 North American Qualification Tournament | 1 | |
| 2019 Oceania Qualification Tournament | 1 | |
| 2019 South American Qualification Tournament | 1 | |
| 2020 Final Olympic Repechage Tournament | 1 |