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.

[1] The following players received wildcards into the singles main draw: The following players received entry from the qualifying draw: The following pairs received wildcards into the doubles main draw: