2019 Japan Women's Open – Singles

Hsieh Su-wei was the defending champion, but lost to Nao Hibino in the quarterfinals. Hibino went on to win the title, defeating Misaki Doi in the final, 6–3, 6–2.

2019 Japan Women's Open – Singles

Hsieh Su-wei was the defending champion, but lost to Nao Hibino in the quarterfinals. Hibino went on to win the title, defeating Misaki Doi in the final, 6–3, 6–2.