The 2025 Toray Pan Pacific Open was a professional women's tennis tournament played on outdoor hard courts. It was the 51st edition of the Pan Pacific Open, and part of the WTA 500 tournaments of the 2025 WTA Tour. It took place at the Ariake Coliseum in Tokyo, Japan from 20 to 26 October 2025.
The following players received wildcards into the singles draw:
The following player received entry using a protected ranking:
The following players received entry from the qualifying draw:
The following players received entry as lucky losers:
The following pairs received wildcards into the doubles main draw:
The following pair received entry as alternates: