See main article: article and 2018 Swiss Indoors.
Ivan Dodig and Marcel Granollers were the defending champions, but chose not to participate together. Dodig was scheduled to play alongside Ben McLachlan, but withdrew with a back injury. Granollers teamed up with Rohan Bopanna, but lost in the quarterfinals to Dominic Inglot and Franko Škugor.
Inglot and Škugor went on to win the title, defeating Alexander and Mischa Zverev in the final 6–2, 7–5.
