2018 Geneva Open

The 2018 Geneva Open (also known as the Banque Eric Sturdza Geneva Open for sponsorship reasons) was a men's tennis tournament played on outdoor clay courts. It was the 16th edition of the Geneva Open and part of the ATP World Tour 250 series of the 2018 ATP World Tour. It took place at the Tennis Club de Genève in Geneva, Switzerland, from May 20 through May 26, 2018.

Seeds

 * Rankings are as of May 14, 2018.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇪🇸 David Ferrer
 * 🇮🇹 Fabio Fognini
 * Stan Wawrinka

The following players received entry from the qualifying draw:
 * 🇩🇪 Dominik Köpfer
 * 🇨🇿 Lukáš Rosol
 * 🇺🇸 Noah Rubin
 * 🇪🇸 Bernabé Zapata Miralles

Withdrawals

 * Before the tournament
 * 🇺🇦 Alexandr Dolgopolov → replaced by 🇨🇾 Marcos Baghdatis
 * 🇧🇪 David Goffin → replaced by 🇩🇪 Florian Mayer
 * 🇩🇪 Philipp Kohlschreiber → replaced by 🇧🇦 Mirza Bašić
 * 🇮🇹 Paolo Lorenzi → replaced by 🇮🇹 Marco Cecchinato
 * 🇨🇦 Denis Shapovalov → replaced by Ivo Karlović

Seeds

 * Rankings are as of May 14, 2018.

Other entrants
The following pairs received wildcards into the doubles main draw:
 * Antoine Bellier / Johan Nikles
 * 🇷🇴 Marius Copil / Constantin Sturdza

Singles

 * 🇭🇺 Márton Fucsovics def. 🇩🇪 Peter Gojowczyk, 6–2, 6-2

Doubles

 * 🇦🇹 Oliver Marach / Mate Pavić def.  Ivan Dodig / 🇺🇸 Rajeev Ram, 3–6, 7–6(7–3), [11–9]