1989 Head Cup – Singles

Kent Carlsson was the defending champion, but lost in the second round to Christian Saceanu.

Emilio Sánchez won the title by defeating Martín Jaite 7–6(7–5), 6–1, 2–6, 6–2 in the final.

Seeds
• # 🇦🇷 Alberto Mancini (second round)

• # 🇸🇪 Kent Carlsson (second round)

• # 🇪🇸 Emilio Sánchez (champion)

• # 🇦🇷 Guillermo Pérez Roldán (third round)

• # 🇪🇸 Sergi Bruguera (quarterfinals)

• # 🇦🇹 Horst Skoff (first round)

• # 🇦🇷 Martín Jaite (final)

• # Alexander Volkov (first round)

• # (n/a)

• # 🇪🇸 Javier Sánchez (semifinals)

• # Andrei Cherkasov (second round)

• # 🇲🇽 Leonardo Lavalle (first round)

• # 🇦🇷 Horacio de la Peña (first round)

• # Goran Prpić (semifinals)

• # 🇦🇷 Eduardo Bengoechea (second round)

• # Martin Střelba (quarterfinals)