Vitas Gerulaitis was the defending champion but lost in the final 6–3, 6–4 to John McEnroe.
Seeds
John McEnroe (champion) Gene Mayer (semifinals) Vitas Gerulaitis (final) Wojciech Fibak (first round) John Sadri (quarterfinals) Johan Kriek (semifinals) Bill Scanlon (quarterfinals) Phil Dent (second round)
Draw
Finals
Top half
Bottom half
External links 1980 Custom Credit Australian Indoor Championships draw