2023 WTA Finals – Singles

Iga Świątek defeated Jessica Pegula in the final, 6–1, 6–0 to win the singles tennis title at the 2023 WTA Finals. Świątek did not lose a match throughout the entire tournament, becoming the first player to do so since Elina Svitolina in 2018. Furthermore, she also did not drop a set throughout the entire tournament, becoming the first player to do so since Serena Williams in 2012. Świątek dropped just 20 games throughout the entire tournament, the fewest since the reintroduction of the round-robin format in 2003. By winning the title, Świątek regained the WTA No. 1 ranking from Aryna Sabalenka. This was the first edition of the WTA Finals since 1988 where neither finalist dropped a set en route to the final.

Caroline Garcia was the reigning champion, but did not qualify this year. No previous champions qualified for this year's tournament, guaranteeing a first-time WTA Finals champion.

Elena Rybakina and Markéta Vondroušová made their singles debuts at the event; they were eliminated in the group stage. Karolína Muchová also would have made her debut, but withdrew due to an ongoing wrist injury; she was replaced by Maria Sakkari.

Pegula was the first player to face the world No. 1, No. 2, No. 3, and No. 4 at a single event since the WTA rankings began in 1975.

Seeds
• # Aryna Sabalenka (semifinals)

• # 🇵🇱 Iga Świątek (champion)

• # 🇺🇸 Coco Gauff (semifinals)

• # 🇰🇿 Elena Rybakina (round robin)

• # 🇺🇸 Jessica Pegula (final)

• # 🇹🇳 Ons Jabeur (round robin)

• # 🇨🇿 Markéta Vondroušová (round robin)

• # Maria Sakkari (round robin)

Alternates
• # 🇨🇿 Barbora Krejčíková (did not play)