| 2021 Open de Oeiras II | ||||
|---|---|---|---|---|
| Date | 5–11 April | |||
| Edition | 2nd | |||
| Surface | Clay | |||
| Location | Oeiras, Portugal | |||
| Champions | ||||
| Singles | ||||
 Pedro Cachin | ||||
| Doubles | ||||
 Nuno Borges / Francisco Cabral | ||||
| ||||
The 2021 Open de Oeiras II was a professional tennis tournament played on clay courts. It was the second edition of the tournament, part of the 2021 ATP Challenger Tour. It took place in Oeiras, Portugal between 5 and 11 April 2021.
Singles main-draw entrants
Seeds
| Country | Player | Rank | Seed |
|---|---|---|---|
 GER
|
Oscar Otte | 154 | 1 |
 FRA
|
Enzo Couacaud | 185 | 2 |
 USA
|
Ernesto Escobedo | 205 | 3 |
 MAR
|
Elliot Benchetrit | 240 | 4 |
 ITA
|
Gian Marco Moroni | 241 | 5 |
| ARG
|
Marco Trungelliti | 247 | 6 |
 ESP
|
Nicola Kuhn | 250 | 7 |
| FRA
|
Tristan Lamasine | 257 | 8 |
- Rankings are as of 22 March 2021.
Other entrants
The following players received wildcards into the singles main draw:
- Pedro Araújo
- Nuno Borges
- Tiago Cação
The following player received entry into the singles main draw as a special exempt:
The following players received entry into the singles main draw as alternates:
The following players received entry from the qualifying draw:
Champions
Singles
Main article: 2021 Open de Oeiras II – Singles- Pedro Cachin def. Nuno Borges 7–6, 7–6.
Doubles
Main article: 2021 Open de Oeiras II – Doubles- Nuno Borges / Francisco Cabral def.
Pavel Kotov / 
Tseng Chun-hsin 6–1, 6–2.
References
- "Rankings – Singles – ATP Tour – Tennis". ATP Tour.