2018 Hong Kong Tennis Open – Singles

Anastasia Pavlyuchenkova was the defending champion, but chose to compete in Linz instead.

Dayana Yastremska won her first WTA Tour title, defeating Wang Qiang in the final, 6–2, 6–1.

Seeds
• #🇺🇦 Elina Svitolina (quarterfinals)

• #🇯🇵 Naomi Osaka (withdrew)

• # Jeļena Ostapenko (first round)

• #🇪🇸 Garbiñe Muguruza (semifinals)

• #🇺🇦 Lesia Tsurenko (withdrew)

• #🇨🇳 Wang Qiang (final)

• #🇦🇺 Daria Gavrilova (quarterfinals)

• #🇫🇷 Alizé Cornet (second round)

Seeds
• # 🇬🇧 Heather Watson (first round)

• # 🇹🇳 Ons Jabeur (qualified)

• # 🇮🇱 Julia Glushko (qualifying competition, lucky loser)

• # 🇯🇵 Nao Hibino (qualified)

• # 🇭🇺 Fanny Stollár (qualified)

• # 🇺🇸 Caroline Dolehide (qualifying competition, lucky loser)

• # 🇺🇿 Sabina Sharipova (qualified)

• # 🇺🇸 Claire Liu (first round)

• # 🇩🇪 Laura Siegemund (qualifying competition)

• # 🇧🇬 Viktoriya Tomova (qualifying competition, lucky loser)

• # Tereza Mrdeža (first round)

• # Bibiane Schoofs (qualified)

Qualifiers
• # 🇺🇿 Sabina Sharipova

• # 🇹🇳 Ons Jabeur

• # Bibiane Schoofs

• # 🇯🇵 Nao Hibino

• # 🇭🇺 Fanny Stollár

• # Lesley Kerkhove

Lucky losers
• # 🇧🇬 Viktoriya Tomova

• # 🇮🇱 Julia Glushko

• # 🇺🇸 Caroline Dolehide