1984 Mercedes Cup – Singles

José Higueras was the defending champion, but lost in the quarterfinals to Tomas Smid.

Henri Leconte won the title by defeating Gene Mayer 7–6(11–9), 6–0, 1–6, 6–1 in the final.

Seeds
• # 🇺🇸 Eliot Teltscher (semifinals)

• # Tomáš Šmíd (semifinals)

• # Kevin Curren (second round)

• # 🇺🇸 Scott Davis (first round)

• # 🇺🇸 Gene Mayer (final)

• # 🇪🇸 José Higueras (quarterfinals)

• # 🇫🇷 Henri Leconte (champion)

• # 🇺🇸 Brian Teacher (quarterfinals)