2023 Australian Open – Women's singles
Aryna Sabalenka defeated Elena Rybakina in the final, 4–6, 6–3, 6–4 to win the women's singles tennis title at the 2023 Australian Open. It was her first major singles title. By reaching the final, Rybakina made her debut in the top ten of the WTA rankings, making her the first Kazakhstani, male or female, to do so.
Ashleigh Barty was the reigning champion, but she retired from professional tennis in March 2022.
Barty's retirement and Angelique Kerber and Naomi Osaka’s absences meant that Victoria Azarenka and Sofia Kenin were the only former champions left in the draw. They met in the first round, with Azarenka winning.
Jeļena Ostapenko became the first Latvian to reach the Australian Open quarterfinals.
This tournament marked the final major appearance of former world No. 1 and two-time major champion Garbiñe Muguruza; she lost in the first round to Elise Mertens. Muguruza later announced her retirement from professional tennis the following year.
Seeded players
The following are the seeded players. Seedings are based on WTA rankings as of 9 January 2023. Rankings and points before are as of 16 January 2023.| Seed | Rank | Player | Points before | Points defending | Points won | Points after | Status | |||
| 1 | 1 |  Withdrawn playersThe following player would have been seeded, but withdrew before the tournament began.
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