The 2023 Engie Open Nantes Atlantique was a professional tennis tournament played on indoor hard courts.

It was the nineteenth edition of the tournament which was part of the 2023 ITF Women's World Tennis Tour.

It took place in Nantes, France between 30 October and 5 November 2023.

[1] The following players received wildcards into the singles main draw: The following player received entry as a junior exempt: The following players received entry from the qualifying draw: The following player received entry as a lucky loser: