1983 Custom Credit Australian Indoor Championships – Singles

John McEnroe was the defending champion and won in the final 6–1, 6–4, 7–5 against Henri Leconte.

Seeds

 * 1) 🇺🇸 John McEnroe (champion)
 * 2)  Ivan Lendl (quarterfinals)
 * 3)  Kevin Curren (second round)
 * 4) 🇺🇸 Steve Denton (first round)
 * 5) 🇫🇷 Henri Leconte (final)
 * 6) 🇳🇿 Chris Lewis (first round)
 * 7) 🇦🇺 Mark Edmondson (second round)
 * 8) 🇦🇺 Pat Cash (first round)