2018 Sánchez-Casal Mapfre Cup – Doubles

This was the first edition of the tournament.

Marcelo Demoliner and David Vega Hernández won the title after defeating Rameez Junaid and David Pel 7–6(7–3), 6–3 in the final.

Seeds
• # 🇧🇷 Marcelo Demoliner / 🇪🇸 David Vega Hernández (champions)

• # 🇳🇿 Marcus Daniell / Mark Vervoort (quarterfinals)

• # 🇦🇺 Rameez Junaid / David Pel (final)

• # 🇸🇰 Andrej Martin / Hans Podlipnik Castillo (semifinals)