2020 Thailand Open – Singles

Dayana Yastremska was the defending champion, but withdrew before the tournament began.

Magda Linette won the title, defeating Leonie Küng in the final, 6–3, 6–2.

Seeds
• # 🇺🇦 Elina Svitolina (quarterfinals)

• # Petra Martić (first round)

• # 🇨🇳 Wang Qiang (quarterfinals)

• # 🇨🇳 Zheng Saisai (quarterfinals)

• # 🇵🇱 Magda Linette (champion)

• # 🇨🇳 Wang Yafan (first round)

• # 🇨🇳 Zhu Lin (second round)

• # 🇯🇵 Nao Hibino (semifinals)

Seeds
• # 🇨🇳 Xun Fangying (qualifying competition)

• # 🇯🇵 Chihiro Muramatsu (qualified)

• # Liang En-shuo (qualified)

• # 🇳🇴 Ulrikke Eikeri (qualified)

• # 🇦🇺 Ellen Perez (qualified)

• # 🇹🇭 Peangtarn Plipuech (qualifying competition, lucky loser)

• # Leonie Küng (qualified)

• # 🇦🇺 Storm Sanders (qualified)

• # 🇯🇵 Eri Hozumi (first round)

• # 🇯🇵 Junri Namigata (first round)

• # 🇹🇭 Nudnida Luangnam (first round)

• # 🇮🇳 Riya Bhatia (qualifying competition)

Qualifiers
• # Leonie Küng

• # 🇯🇵 Chihiro Muramatsu

• # Liang En-shuo

• # 🇳🇴 Ulrikke Eikeri

• # 🇦🇺 Ellen Perez

• # 🇦🇺 Storm Sanders

Lucky loser
• # 🇹🇭 Peangtarn Plipuech