| Date: | 26 January 2019 |
| Champ: | Clara Tauson |
| Runner: |  Leylah Fernandez |
| Score: | 6–4, 6–3 |
See main article: 2019 Australian Open.
Clara Tauson won the girls' singles tennis title at the 2019 Australian Open, defeating Leylah Fernandez in the final, 6–4, 6–3.[1]
Liang En-shuo was the defending champion, but she participated in the women's qualifying competition where she lost to Bibiane Schoofs in the first round.