The 2023 Surbiton Trophy was a professional tennis tournament played on outdoor grass.

It was the 18th edition for men and 19th for women, which were respectively part of the 2023 ATP Challenger Tour and the 2023 ITF Women's World Tennis Tour.

It took place in Surbiton, United Kingdom between 5 and 11 June 2023.

[1] The following players received wildcards into the singles main draw: The following players received entry into the singles main draw using protected rankings: The following player received entry into the singles main draw as an alternate: The following players received entry from the qualifying draw: The following players received entry as lucky losers: The following players received wildcards into the singles main draw: The following players received entry from the qualifying draw: