Defending champion Diede de Groot defeated Yui Kamiji in the final, 6–0, 6–2 to win the women's singles wheelchair tennis title at the 2019 Australian Open. It was her third step towards a non-calendar-year Grand Slam.
Seeds
Diede de Groot (champion)
Yui Kamiji (final)
Draw
Key
- Q = Qualifier
- WC = Wild card
- LL = Lucky loser
- Alt = Alternate
- SE = Special exempt
- PR = Protected ranking
- ITF = ITF entry
- JE = Junior exempt
- w/o = Walkover
- r = Retired
- d = Defaulted
- SR = Special ranking
Draw
| First round | Semifinals | Final | ||||||||||||||||||
| 1 | Diede de Groot
| 6 | 6 | |||||||||||||||||
 Lucy Shuker
| 0 | 0 | ||||||||||||||||||
| 1 | Diede de Groot
| 6 | 6 | |||||||||||||||||
| Marjolein Buis
| 3 | 2 | ||||||||||||||||||
| Marjolein Buis
| 6 | 6 | ||||||||||||||||||
 Sabine Ellerbrock
| 1 | 4 | ||||||||||||||||||
| 1 | Diede de Groot
| 6 | 6 | |||||||||||||||||
| 2 | Yui Kamiji
| 0 | 2 | |||||||||||||||||
| Aniek van Koot
| 6 | 7 | ||||||||||||||||||
 Kgothatso Montjane
| 1 | 5 | ||||||||||||||||||
| Aniek van Koot
| 1 | 4 | ||||||||||||||||||
| 2 | Yui Kamiji
| 6 | 6 | |||||||||||||||||
 Giulia Capocci
| 63 | 3 | ||||||||||||||||||
| 2 | Yui Kamiji
| 77 | 6 | |||||||||||||||||
References
- General
- Specific