The 2018 Tampere Open was a professional tennis tournament played on clay courts.

It was the 37th edition of the tournament which was part of the 2018 ATP Challenger Tour and the 2018 ITF Women's Circuit.

It took place in Tampere, Finland, on 23–29 July 2018.

The following players received wildcards into the singles main draw: The following player received entry into the singles main draw using a protected ranking: The following player received entry into the singles main draw as a special exempt: The following players received entry from the qualifying draw: The following players received wildcards into the singles main draw: The following players received entry from the qualifying draw: