2023 Fukuoka International Women's Cup – Singles

Heather Watson was the defending champion but chose not to participate.

Natsumi Kawaguchi won the title after Katie Boulter withdrew before the final.

Seeds
• # 🇬🇧 Katie Boulter (final)

• # 🇨🇦 Carol Zhao (semifinals)

• # 🇯🇵 Sakura Hosogi (second round)

• # 🇺🇸 Emina Bektas (semifinals)

• # 🇦🇺 Lizette Cabrera (quarterfinals)

• # 🇮🇱 Lina Glushko (first round)

• # 🇯🇵 Haruka Kaji (first round)

• # Liang En-shuo (quarterfinals)