2020 Marbella Tennis Open – Singles

Pablo Andújar was the defending champion but chose not to defend his title.

Pedro Martínez won the title after defeating Jaume Munar 7–6(7–4), 6–2 in the final.

Seeds
• # 🇦🇷 Federico Coria (first round)

• # 🇪🇸 Pedro Martínez (champion)

• # 🇮🇹 Gianluca Mager (second round)

• # 🇪🇸 Roberto Carballés Baena (first round)

• # 🇸🇰 Andrej Martin (first round)

• # 🇪🇸 Jaume Munar (final)

• # Pedro Sousa (first round)

• # 🇸🇰 Jozef Kovalík (first round)