1984 U.S. Pro Indoor – Singles

John McEnroe was the defending champion.

McEnroe successfully defended his title, defeating Ivan Lendl, 6–3, 3–6, 6–3, 7–6 in the final.

Seeds

 * 1)  Ivan Lendl (final)
 * 2) 🇺🇸 John McEnroe (champion)
 * 3) 🇫🇷 Yannick Noah (semifinals)
 * 4) 🇺🇸 Jimmy Arias (quarterfinals)
 * 5) 🇺🇸 Bill Scanlon (second round)
 * 6)  Kevin Curren (withdrew)
 * 7) 🇺🇸 Gene Mayer (second round)
 * 8) 🇺🇸 Eliot Teltscher (quarterfinals)
 * 9)  Johan Kriek (third round)
 * 10) 🇺🇸 Tim Mayotte (second round)
 * 11)  Tomáš Šmíd(quarterfinals)
 * 12) 🇺🇸 Brian Gottfried (second round)
 * 13) 🇸🇪 Henrik Sundström (second round)
 * 14)  Heinz Günthardt (third round)
 * 15) 🇺🇸 Scott Davis (third round)
 * 16) 🇫🇷 Henri Leconte (third round)