2019 Thailand Open – Singles

Belinda Bencic was the champion the last time the event was held in 2017, but chose to compete in St. Petersburg instead.

Dayana Yastremska won the title, defeating Ajla Tomljanović in the final, 6–2, 2–6, 7–6(7–3).

Seeds
• #🇪🇸 Garbiñe Muguruza (quarterfinals)

• #🇫🇷 Caroline Garcia (first round)

• # Hsieh Su-wei (first round)

• #🇨🇳 Zheng Saisai (quarterfinals)

• #🇨🇳 Zhang Shuai (second round, retired)

• #🇦🇺 Ajla Tomljanović (final)

• #🇫🇷 Pauline Parmentier (first round)

• #🇺🇦 Dayana Yastremska (champion)

Seeds
• # Arantxa Rus (qualified)

• # 🇺🇸 Jennifer Brady (qualified)

• # 🇺🇸 Caroline Dolehide (first round)

• # 🇦🇺 Priscilla Hon (qualified)

• # Conny Perrin (qualified)

• # 🇨🇳 Han Xinyun (qualifying competition)

• # 🇨🇳 Duan Yingying (qualified)

• # 🇯🇵 Kurumi Nara (qualifying competition)

• # 🇲🇪 Danka Kovinić (first round)

• # 🇯🇵 Ayano Shimizu (qualifying competition)

• # 🇮🇳 Ankita Raina (qualifying competition)

• # 🇮🇳 Karman Thandi (first round)

Qualifiers
• # Arantxa Rus

• # 🇺🇸 Jennifer Brady

• # 🇫🇷 Chloé Paquet

• # 🇦🇺 Priscilla Hon

• # Conny Perrin

• # 🇨🇳 Duan Yingying