2022 Open de Oeiras

The 2022 Open de Oeiras was a professional tennis tournament played on clay courts. It was the fifth edition of the tournament which was part of the 2022 ATP Challenger Tour. It took place in Oeiras, Portugal between 28 March and 4 April 2022.

Seeds

 * 1 Rankings are as of 21 March 2022.

Other entrants
The following players received wildcards into the singles main draw:
 * Pedro Araújo
 * Tiago Cação
 * João Domingues

The following player received entry into the singles main draw as a special exempt:
 * 🇵🇱 Daniel Michalski

The following players received entry into the singles main draw as alternates:
 * 🇮🇹 Riccardo Bonadio
 * 🇨🇿 Lukáš Rosol
 * 🇮🇹 Andrea Vavassori

The following players received entry from the qualifying draw:
 * 🇮🇹 Luciano Darderi
 * 🇩🇪 Lucas Gerch
 * 🇹🇷 Ergi Kırkın
 * 🇫🇷 Matthieu Perchicot
 * 🇺🇸 Noah Rubin
 * 🇺🇸 Alex Rybakov

The following player received entry as a lucky loser:
 * 🇮🇹 Francesco Forti

Singles

 * Gastão Elias def. Nino Serdarušić 6–3, 6–4.

Doubles

 * Nuno Borges / Francisco Cabral def. 🇺🇿 Sanjar Fayziev /  Markos Kalovelonis 6–3, 6–0.