See main article: 2020 Sánchez-Casal Cup.
Simone Bolelli and David Vega Hernández were the defending champions[1] but chose not to defend their title.
Szymon Walków and Tristan-Samuel Weissborn won the title after defeating Harri Heliövaara and Alex Lawson 6–1, 4–6, [10–8] in the final.