2019 China Open – Women's singles

Naomi Osaka defeated Ashleigh Barty in the final, 3–6, 6–3, 6–2 to win the women's singles tennis title at the 2019 China Open. It was Osaka's second Premier Mandatory-level title.

Caroline Wozniacki was the defending champion, but lost to Osaka in the semifinals.

Barty and Karolína Plíšková were in contention for the WTA no. 1 singles ranking at the start of the tournament. Barty retained the top ranking when Plíšková lost in the first round to Jeļena Ostapenko.