The 2023 Rancho Santa Fe Open is a professional tennis tournament played on outdoor hard courts.

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

It took place in Rancho Santa Fe, California, United States between 9 and 15 October 2023.

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