2003 Priority Telecom Open – Singles

Juan Ignacio Chela was the defending champion but lost in the second round to Rubén Ramírez Hidalgo.

Nicolás Massú won in the final 6–4, 7–6(7–3), 6–2 against Raemon Sluiter.

Seeds
• # Martin Verkerk (first round)

• # 🇦🇷 Gastón Gaudio (first round)

• # 🇦🇷 Juan Ignacio Chela (second round)

• # n/a

• # 🇪🇸 Fernando Vicente (first round)

• # Raemon Sluiter (final)

• # Nicolás Massú (champion)

• # 🇪🇸 Albert Portas (first round)

• # 🇦🇷 Franco Squillari (second round)