The 2023 NSW Open was a professional tennis tournament played on outdoor hard courts.

It was the third edition of the tournament which was part of the 2023 ATP Challenger Tour and the ninth edition of the tournament which was part of the 2023 ITF Women's World Tennis Tour.

It took place in Sydney, Australia between 30 October and 5 November 2023.

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