See main article: 2024 Lisboa Belém Open.
Karol Drzewiecki and Zdeněk Kolář were the defending champions[1] but only Drzewiecki chose to defend his title, partnering Piotr Matuszewski. They lost in the semifinals to Romain Arneodo and Théo Arribagé.
Arneodo and Arribagé won the title after defeating George Goldhoff and Fernando Romboli 6–2, 6–3 in the final.