The 2023 Ladies Open Vienna was a professional tennis tournament played on outdoor clay courts.

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

It took place in Vienna, Austria, between 4 and 10 September 2023.

[1] The following players received wildcards into the singles main draw: The following players received entry into the singles main draw as special exempts: The following players received entry from the qualifying draw: