2001 Generali Open – Singles

Àlex Corretja was the defending champion but lost in the second round to Stefan Koubek.

Nicolás Lapentti won in the final 1–6, 6–4, 7–5, 7–5 against Albert Costa.

Seeds
A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated. All sixteen seeds received a bye to the second round.


 * 1) 🇪🇸 Juan Carlos Ferrero (quarterfinals)
 * 2) 🇷🇺 Yevgeny Kafelnikov (third round)
 * 3) 🇪🇸 Àlex Corretja (second round)
 * 4) 🇦🇷 Franco Squillari (third round)
 * 5) 🇦🇷 Guillermo Coria (semifinals)
 * 6) 🇪🇨 Nicolás Lapentti (champion)
 * 7) 🇦🇷 Guillermo Cañas (second round)
 * 8) 🇪🇸 Alberto Martín (third round)
 * 9) 🇦🇷 Gastón Gaudio (third round)
 * 10) 🇪🇸 Álex Calatrava (third round)
 * 11)  Andrei Pavel (quarterfinals)
 * 12) 🇦🇺 Wayne Arthurs (second round, retired)
 * 13) 🇩🇪 Rainer Schüttler (third round)
 * 14) 🇮🇹 Andrea Gaudenzi (withdrew because of a torn right leg muscle)
 * 15) 🇪🇸 Fernando Vicente (second round)
 * 16) 🇪🇸 Francisco Clavet (second round)