The 2023 Nottingham Open (also known as the Rothesay Open Nottingham for sponsorship purposes) was a professional tennis tournament played on outdoor grass courts.

It was the 15th edition of the event for women and the 27th edition for men.

It was classified as a WTA 250 on the 2023 WTA Tour for the women, and as an ATP Challenger Tour event for the men.

The event took place at the Nottingham Tennis Centre in Nottingham, United Kingdom from 12 through 18 June 2023.

[1] The following players received wildcards into the main draw: The following players received entry into the singles main draw using protected rankings: The following players received entry into the singles main draw as alternates: The following players received entry from the qualifying draw: The following player received entry as a lucky loser: The following players received wildcards into the main draw: The following players received entry from the qualifying draw: The following player received entry as a lucky loser: The following pairs received wildcards into the doubles main draw: