1979 Australian Open – Men's singles
| Men's singles | |
|---|---|
| 1979 Australian Open | |
| Champion | Guillermo Vilas |
| Runner-up | John Sadri |
| Score | 7–6(7–4), 6–3, 6–2 |
| Draw | 64 |
| Seeds | 16 |
Defending champion Guillermo Vilas defeated John Sadri in the final, 7–6(7–4), 6–3, 6–2 to win the men's singles tennis title at the 1979 Australian Open. It was his second Australian Open title and fourth and last major singles title overall.