1998 US Open – Men's singles qualifying

Players who neither had high enough rankings nor received wild cards to enter the main draw of the annual US Open Tennis Championships participated in a qualifying tournament held over several days before the event.

Seeds
• # 🇦🇷 Martin Rodriguez (qualified)

• # 🇩🇪 Rainer Schüttler (second round)

• # 🇮🇹 Laurence Tieleman (second round)

• # 🇦🇺 Michael Tebbutt (second round)

• # 🇯🇵 Takao Suzuki (second round)

• # Grant Stafford (qualifying competition)

• # 🇺🇸 Brian MacPhie (second round)

• # 🇮🇹 Vincenzo Santopadre (second round)

• # Ivo Heuberger (second round)

• # Neville Godwin (qualifying competition)

• # 🇧🇷 André Sá (first round)

• # 🇫🇮 Tuomas Ketola (second round)

• # 🇨🇿 Tomáš Zíb (first round)

• # 🇦🇺 Lleyton Hewitt (second round)

• # 🇩🇪 Lars Burgsmüller (first round)

• # 🇦🇹 Wolfgang Schranz (first round)

• # 🇩🇪 Alex Rădulescu (qualified)

• # 🇮🇹 Cristiano Caratti (first round)

• # 🇩🇪 Michael Kohlmann (qualified)

• # 🇫🇷 Arnaud Di Pasquale (qualified)

• # 🇦🇺 Peter Tramacchi (first round)

• # 🇦🇷 Francisco Cabello (first round)

• # 🇩🇪 Bernd Karbacher (qualified)

• # 🇦🇺 Mark Draper (first round)

• # 🇦🇷 Sebastián Prieto (second round)

• # 🇨🇿 Petr Luxa (qualifying competition)

• # 🇺🇸 Michael Sell (first round)

• # 🇧🇾 Vladimir Voltchkov (qualifying competition)

• # Peter Wessels (first round)

• # 🇫🇷 Gérard Solvès (qualifying competition)

• # 🇮🇹 Stefano Pescosolido (qualifying competition)

• # 🇧🇷 Adriano Ferreira (first round)

Qualifiers
• # 🇦🇷 Martin Rodriguez

• # 🇰🇷 Yoon Yong-il

• # 🇦🇺 Wayne Arthurs

• # 🇫🇷 Jean-Baptiste Perlant

• # 🇦🇺 James Sekulov

• # 🇩🇪 Karsten Braasch

• # 🇺🇸 Mark Merklein

• # David Nainkin

• # 🇮🇹 Giorgio Galimberti

• # 🇩🇪 Bernd Karbacher

• # 🇮🇱 Eyal Erlich

• # 🇮🇱 Noam Behr

• # 🇩🇪 Michael Kohlmann

• # 🇫🇷 Arnaud Di Pasquale

• # 🇩🇪 Alex Rădulescu

• # 🇺🇸 David Wheaton