2020 Open du Pays d'Aix – Singles

Pablo Cuevas was the defending champion but lost in the quarterfinals to Daniel Altmaier.

Oscar Otte won the title after defeating Thiago Seyboth Wild 6–2, 6–7(4–7), 6–4 in the final.

Seeds
• # 🇫🇷 Gilles Simon (first round)

• # Pablo Cuevas (quarterfinals)

• # 🇮🇹 Gianluca Mager (first round)

• # 🇧🇴 Hugo Dellien (first round)

• # 🇪🇸 Roberto Carballés Baena (second round)

• # 🇦🇺 Alexei Popyrin (first round)

• # 🇦🇷 Federico Coria (first round)

• # 🇮🇹 Marco Cecchinato (second round)