| Champ: |  Victoria Jiménez Kasintseva |
| Runner: |  Weronika Baszak |
| Score: | 5–7, 6–2, 6–2 |
| After Year: | 2022 |
See main article: 2020 Australian Open.
Victoria Jiménez Kasintseva won the girls' singles title at the 2020 Australian Open, defeating Weronika Baszak in the final, 5–7, 6–2, 6–2.[1] [2] She became the first tennis player from Andorra to win a Grand Slam title in any discipline.[3]
Clara Tauson was the defending champion,[4] but chose not to participate.