2025 Japan Women's Open
The 2025 Kinoshita Group Japan Open was a women's tennis tournament played on outdoor hard courts. It was the 14th edition of the Japan Women's Open, and part of the WTA 250 tournaments of the 2025 WTA Tour. It was held at the Utsubo Tennis Center in Osaka, Japan, from 13 to 19 October 2025.
Champions
Singles
Leylah Fernandez def. Tereza Valentová, 6–0, 5–7, 6–3Doubles
Kristina Mladenovic / Taylor Townsend def. Storm Hunter / Desirae Krawczyk, 6–4, 2–6,Singles main-draw entrants
Seeds
Other entrants
The following players received wildcards into the singles main draw:The following player received entry using a protected ranking:
The following players received entry from the qualifying draw:
Withdrawals
- Loïs Boisson → replaced by Sorana Cîrstea
- Iva Jovic → replaced by Bianca Andreescu
- Peyton Stearns → replaced by Suzan Lamens
Doubles main-draw entrants
Seeds
- 1 Rankings are as of 6 October 2025