1984 Donnay Indoor Championships – Singles

Peter McNamara was the defending champion, but did not participate this year.

John McEnroe won the title, defeating Ivan Lendl 6–1, 6–3 in the final.

Seeds

 * 1)  Ivan Lendl (final)
 * 2) 🇺🇸 John McEnroe (champion)
 * 3) 🇸🇪 Mats Wilander (first round)
 * 4)  Kevin Curren (first round)
 * 5) 🇺🇸 Eliot Teltscher (second round)
 * 6) 🇺🇸 Bill Scanlon (first round)
 * 7) 🇺🇸 Johan Kriek (quarterfinals)
 * 8) 🇺🇸 Gene Mayer (quarterfinals)