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 Rank1 SeedOscar Otte1541Enzo Couacaud1852Ernesto Escobedo2053Elliot Benchetrit2404Gian Marco Moroni2415Marco Trungelliti2476Nicola Kuhn2507Tristan Lamasine2578 1 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: Gastão Elias

The following players received entry into the singles main draw as alternates: Harry Bourchier Jonáš Forejtek

The following players received entry from the qualifying draw: Adrian Andreev Raúl Brancaccio Pedro Cachin Evan Furness

Champions Singles

Pedro Cachin def. Nuno Borges 7–6(7–4), 7–6(7–3).

Doubles

Nuno Borges / Francisco Cabral def. Pavel Kotov / Tseng Chun-hsin 6–1, 6–2.

References