| Champ: |  Mary-Lou Piatek |
| Runner: | Alycia Moulton |
| Score: | 6–1, 6–3 |
| Before Name: | Wimbledon Championships – Girls' singles |
| After Name: | Wimbledon Championships – Girls' singles |
| Type: | grand slam |
See main article: 1979 Wimbledon Championships. Mary-Lou Piatek defeated Alycia Moulton in the final, 6–1, 6–3 to win the girls' singles tennis title at the 1979 Wimbledon Championships.[1]
See also: 1 and 1. Andrea Jaeger (quarterfinals)
See also: 2 and 4. 
Lena Sandin (third round)
See also: 3 and 3. Mary-Lou Piatek (champion)
See also: 4 and 2. Linda Siegel (second round)
See also: 5 and 2. Alycia Moulton (final)
See also: 6 and 3. Helga Lütten (quarterfinals)
See also: 7 and 4. 
Susan Leo (semifinals)
See also: 8 and 1. Claudia Kohde (third round)