2021 Copa Sudamericana
The 2021 Copa CONMEBOL Sudamericana will be the 20th edition of the CONMEBOL Sudamericana, South America's secondary club football tournament organized by CONMEBOL.
The winners of the 2021 Copa Sudamericana will earn the right to play against the winners of the 2021 Copa Libertadores in the 2022 Recopa Sudamericana. They will also automatically qualify for the 2022 Copa Libertadores group stage.
Starting from this season, teams must be in the top division of their member association to play in South American club competitions, except for teams which are champions of the qualifying tournaments or cups.
On 14 May 2020, CONMEBOL announced the candidate venues for the 2021, 2022 and 2023 club competition finals.
Teams
The following 44 teams from the 10 CONMEBOL associations will qualify for the tournament, entering the first stage:- Argentina and Brazil: 6 berths each
- All other associations: 4 berths each
| Association | Team | Qualification method |
| Vélez Sarsfield | 2019–20 Superliga Argentina and 2020 Copa de la Superliga aggregate table best team not qualified for 2021 Copa Libertadores | |
| San Lorenzo | 2019–20 Superliga Argentina and 2020 Copa de la Superliga aggregate table 2nd best team not qualified for 2021 Copa Libertadores | |
| Newell's Old Boys | 2019–20 Superliga Argentina and 2020 Copa de la Superliga aggregate table 3rd best team not qualified for 2021 Copa Libertadores | |
| Talleres | 2019–20 Superliga Argentina and 2020 Copa de la Superliga aggregate table 4th best team not qualified for 2021 Copa Libertadores | |
| Defensa y Justicia | 2019–20 Superliga Argentina and 2020 Copa de la Superliga aggregate table 5th best team not qualified for 2021 Copa Libertadores | |
| Lanús | 2019–20 Superliga Argentina and 2020 Copa de la Superliga aggregate table 6th best team not qualified for 2021 Copa Libertadores | |
| 2020 Primera División aggregate table best team not qualified for 2021 Copa Libertadores | ||
| 2020 Primera División aggregate table 2nd best team not qualified for 2021 Copa Libertadores | ||
| 2020 Primera División aggregate table 3rd best team not qualified for 2021 Copa Libertadores | ||
| 2020 Primera División aggregate table 4th best team not qualified for 2021 Copa Libertadores | ||
| 2020 Campeonato Brasileiro Série A best team not qualified for 2021 Copa Libertadores | ||
| 2020 Campeonato Brasileiro Série A 2nd best team not qualified for 2021 Copa Libertadores | ||
| 2020 Campeonato Brasileiro Série A 3rd best team not qualified for 2021 Copa Libertadores | ||
| 2020 Campeonato Brasileiro Série A 4th best team not qualified for 2021 Copa Libertadores | ||
| 2020 Campeonato Brasileiro Série A 5th best team not qualified for 2021 Copa Libertadores | ||
| 2020 Campeonato Brasileiro Série A 6th best team not qualified for 2021 Copa Libertadores | ||
| 2020 Primera División best team not qualified for 2021 Copa Libertadores | ||
| 2020 Primera División 2nd best team not qualified for 2021 Copa Libertadores | ||
| 2020 Primera División 3rd best team not qualified for 2021 Copa Libertadores | ||
| 2020 Primera División 4th best team not qualified for 2021 Copa Libertadores | ||
| 2020 Primera A aggregate table best team not qualified for 2021 Copa Libertadores | ||
| 2020 Primera A aggregate table 2nd best team not qualified for 2021 Copa Libertadores | ||
| 2020 Primera A aggregate table 3rd best team not qualified for 2021 Copa Libertadores | ||
| 2020 Primera A Copa Sudamericana play-off winners | ||
| 2020 Serie A aggregate table best team not qualified for 2021 Copa Libertadores | ||
| 2020 Serie A aggregate table 2nd best team not qualified for 2021 Copa Libertadores | ||
| 2020 Serie A aggregate table 3rd best team not qualified for 2021 Copa Libertadores | ||
| 2020 Copa Ecuador champions | ||
| 2020 Primera División aggregate table best team not qualified for 2021 Copa Libertadores | ||
| 2020 Primera División aggregate table 2nd best team not qualified for 2021 Copa Libertadores | ||
| 2020 Primera División aggregate table 3rd best team not qualified for 2021 Copa Libertadores | ||
| 2020 Primera División aggregate table 4th best team not qualified for 2021 Copa Libertadores | ||
| 2020 Liga 1 aggregate table best team not qualified for 2021 Copa Libertadores | ||
| 2020 Liga 1 aggregate table 2nd best team not qualified for 2021 Copa Libertadores | ||
| 2020 Liga 1 aggregate table 3rd best team not qualified for 2021 Copa Libertadores | ||
| 2020 Liga 1 aggregate table 4th best team not qualified for 2021 Copa Libertadores | ||
| 2020 Intermedio winners | ||
| 2020 Apertura or 2020 Clausura winners | ||
| 2020 Primera División aggregate table best team not qualified for 2021 Copa Libertadores | ||
| 2020 Primera División aggregate table 2nd best team not qualified for 2021 Copa Libertadores | ||
| TBC | ||
| TBC | ||
| TBC | ||
| TBC |
A further 10 teams eliminated from the 2021 Copa Libertadores will be transferred to the Copa Sudamericana, entering the [|second stage].
| Best teams eliminated in third stage |
| Third-placed teams in group stage |
;Notes