1977 Australian Open (December) – Men's Singles
| Men's Singles | |
|---|---|
| 1977 Australian Open (December) | |
| Champion |
 Vitas Gerulaitis
|
| Runner-up |
 John Lloyd
|
| Final score | 6–3, 7–6, 5–7, 3–6, 6–2 |
Roscoe Tanner was the defending champion, but was upset in the first round by Chris Lewis.
Vitas Gerulaitis defeated John Lloyd 6–3, 7–6, 5–7, 3–6, 6–2 in the final to win the Men's Singles title at the December, 1977 Australian Open.
The seeded players are listed below. Vitas Gerulaitis is the champion; others show the round in which they were eliminated.
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