2023 ASB Classic – Women's singles

Coco Gauff won the title, defeating Rebeka Masarova in the final, 6–1, 6–1. It was her third career title, not losing a set throughout the tournament.

Serena Williams was the reigning champion from when the event was last held in 2020, but retired from professional tennis in 2022.

Seeds
• # 🇺🇸 Coco Gauff (champion)

• # 🇺🇸 Sloane Stephens (first round)

• # 🇨🇦 Leylah Fernandez (quarterfinals)

• # 🇺🇸 Bernarda Pera (first round)

• # 🇨🇳 Wang Xiyu (first round, retired)

• # 🇺🇸 Madison Brengle (first round)

• # 🇲🇪 Danka Kovinić (semifinals)

• # 🇨🇦 Rebecca Marino (second round)

Seeds
• # 🇧🇪 Ysaline Bonaventure (qualified)

• # Varvara Gracheva (qualifying competition)

• # 🇯🇵 Moyuka Uchijima (qualifying competition)

• # 🇮🇹 Sara Errani (qualifying competition)

• # Diana Shnaider (first round)

• # 🇺🇸 Katie Volynets (qualified)

• # Arantxa Rus (qualifying competition)

• # 🇷🇴 Elena-Gabriela Ruse (qualified)

• # 🇺🇸 Elizabeth Mandlik (first round)

• # 🇺🇸 CoCo Vandeweghe (first round)

• # 🇺🇸 Ann Li (first round)

• # 🇪🇸 Rebeka Masarova (qualified)

Qualifiers
• # 🇧🇪 Ysaline Bonaventure

• # 🇸🇰 Viktória Kužmová

• # 🇷🇴 Elena-Gabriela Ruse

• # 🇪🇸 Rebeka Masarova

• # 🇯🇵 Nao Hibino

• # 🇺🇸 Katie Volynets