The 2023 Toray Pan Pacific Open was a professional women's tennis tournament played on outdoor hard courts. It was the 49th edition of the Pan Pacific Open, and part of the WTA 500 tournaments of the 2023 WTA Tour. It took place at the Ariake Coliseum in Tokyo, Japan from 25 September to 1 October 2023.
The following players received wild cards into the main singles draw:
The following players received entry from the singles qualifying draw:
The following players received entry as lucky losers:
The following pairs received wildcards into the doubles main draw: