See main article: 2023 Australian Open.
| Champ: | Aryna Sabalenka |
| Runner: |  Elena Rybakina |
| Score: | 4–6, 6–3, 6–4 |
| Draw: | 128 |
| Seeds: | 32 |
| Type: | grandslamwc |
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.[1] Sabalenka dropped just one set during the tournament, to Rybakina in the championship match. Rybakina became the first Kazakhstani player to progress past the fourth round, and the first player since Jennifer Capriati in 2001 to defeat three consecutive major champions in a single edition of the Australian Open.[2] By reaching the final, Rybakina made her debut in the top ten of the WTA rankings making her the first player representing Kazakhstan, male or female, ever to reach this milestone.[3]
Ashleigh Barty was the reigning champion,[4] but she retired from professional tennis in March 2022.[5] Barty's retirement and Angelique Kerber and Naomi Osaka’s absences (both due to pregnancy) 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 in straight sets.[6]
Jeļena Ostapenko became the first Latvian to reach the Australian Open quarterfinals.[7]
This tournament marked the final professional major appearance of former world No. 1 and two-time Grand Slam champion Garbiñe Muguruza. She lost in the first round to Elise Mertens. Muguruza later announced her retirement from professional tennis the following year.
| Category | Sabalenka | Rybakina | |
|---|---|---|---|
| 1st serve % | 70/108 (65%) | 62/105 (59%) | |
| 1st serve points won | 50 of 70 = 71% | 44 of 62 = 71% | |
| 2nd serve points won | 18 of 38 = 47% | 19 of 43 = 44% | |
| Total service points won | 68 of 108 = 62.96% | 63 of 105 = 60.00% | |
| Aces | 17 | 9 | |
| Double faults | 7 | 1 | |
| Winners | 51 | 31 | |
| Unforced errors | 28 | 25 | |
| Net points won | 7 of 8 = 88% | 9 of 12 = 75% | |
| Break points converted | 3 of 13 = 23% | 2 of 7 = 29% | |
| Return points won | 42 of 105 = 40% | 40 of 108 = 37% | |
| Total points won | bgcolor=98FB989 | 110 | 103 |
| Source | |||
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 |  Iga Świątek | 11,025 | 780 | 240 | 10,485 | Fourth round lost to Elena Rybakina [22] | |
| 2 | 2 |  Ons Jabeur | 5,140 | 0 | 70 | 5,210 | ||
| 3 | 3 |  Jessica Pegula | 5,000 | 430 | 430 | 5,000 | Quarterfinals lost to Victoria Azarenka [24] | |
| 4 | 4 |  Caroline Garcia | 4,415 | 10 | 240 | 4,645 | ||
| 5 | 5 | Aryna Sabalenka | 4,340 | 240 | 2,000 | 6,100 | Champion, defeated Elena Rybakina [22] | |
| 6 | 6 | Maria Sakkari | 3,921 | 240 | 130 | 3,811 | Third round lost to  Zhu Lin | |
| 7 | 7 | Coco Gauff | 3,762 | 10 | 240 | 3,992 | Fourth round lost to Jeļena Ostapenko [17] | |
| 8 | 8 | Daria Kasatkina | 3,500 | 130 | 10 | 3,380 | First round lost to Varvara Gracheva | |
| 9 | 9 | 2,800 | 130 | 70 | 2,740 | Second round lost to Katie Volynets [Q] | ||
| 10 | 13 | Madison Keys | 2,318 | 780 | 130 | 1,668 | Third round lost to Victoria Azarenka [24] | |
 Paula Badosa | 2,102 | 240 | 0 | 1,862 | Withdrew due to right abductor injury | |||
| 12 | 10 | Belinda Bencic | 2,735 | 70 | 240 | 2,905 | Fourth round lost to Aryna Sabalenka [5] | |
| 13 | 11 | Danielle Collins | 2,388 | 1,300 | 130 | 1,218 | Third round lost to Elena Rybakina [22] | |
| 14 | 14 |  Beatriz Haddad Maia | 2,255 | 70 | 10 | 2,195 | First round lost to Nuria Párrizas Díaz | |
| 15 | 15 |  Petra Kvitová | 2,221 | 10 | 70 | 2,281 | Second round lost to  Anhelina Kalinina | |
| 16 | 19 |  Anett Kontaveit | 1,909 | 70 | 70 | 1,909 | ||
| 17 | 17 | Jeļena Ostapenko | 2,040 | 130 | 430 | 2,340 | Quarterfinals lost to Elena Rybakina [22] | |
| 18 | 20 | Liudmila Samsonova | 1,905 | 70 | 70 | 1,905 | Second round lost to Donna Vekić | |
| 19 | 18 | 1,910 | 10 | 130 | 2,030 | |||
| 20 | 23 | Barbora Krejčíková | 1,600 | 430 | 240 | 1,410 | Fourth round lost to Jessica Pegula [3] | |
| 21 | 21 |  Martina Trevisan | 1,672 | 110 | 10 | 1,572 | ||
| 22 | 25 | Elena Rybakina | 1,585 | 70 | 1,300 | 2,815 | Runner-up, lost to Aryna Sabalenka [5] | |
| 23 | 22 | Zhang Shuai | 1,600 | 130 | 240 | 1,710 | Fourth round lost to Karolína Plíšková [30] | |
| 24 | 24 | Victoria Azarenka | 1,598 | 240 | 780 | 2,138 | Semifinals lost to Elena Rybakina [22] | |
| 25 | 26 | Marie Bouzková | 1,581 | 70 | 10 | 1,521 | First round lost to  Bianca Andreescu | |
| 26 | 32 |  Elise Mertens | 1,449 | 240 | 130 | 1,339 | Third round lost to Aryna Sabalenka [5] | |
| 27 | 30 |  Irina-Camelia Begu | 1,472 | 70 | 70 | 1,472 | Second round lost to Laura Siegemund [PR] | |
| 28 | 27 | Amanda Anisimova | 1,535 | 240 | 10 | 1,305 | First round lost to Marta Kostyuk | |
| 29 | 28 | Zheng Qinwen | 1,534 | 110+80 | 70+1 | 1,415 | Second round lost to Bernarda Pera | |
| 30 | 31 | Karolína Plíšková | 1,450 | 0 | 430 | 1,880 | Quarterfinals lost to Magda Linette | |
| 31 | 29 | Kaia Kanepi | 1,472 | 430 | 10 | 1,052 | First round lost to  Kimberly Birrell [WC] | |
| 32 | 33 | Jil Teichmann | 1,429 | 70 | 70 | 1,429 | Second round lost to Zhu Lin |
The following player would have been seeded, but withdrew before the tournament began.
See main article: 2023 Australian Open – Women's singles qualifying.
The entry list was released by Tennis Australia based on the WTA rankings for the week of 5 December 2022.[11] – not included on entry list
& – withdrew from entry list