Qualifier Albert Portas defeated Juan Carlos Ferrero in the final, 4–6, 6–2, 0–6, 7–6(7–5), 7–5 to win the singles tennis title at the 2001 Hamburg European Open. Gustavo Kuerten was the defending champion, but lost in the first round to Max Mirnyi.

Seeds

A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.

Draw

Finals

Top half

Section 1

Section 2

Bottom half

Section 3

Section 4

Qualifying

Qualifying seeds

• # 🇪🇸 Alberto Martín (qualifying competition, lucky loser) • # 🇪🇸 Albert Portas (qualified) • # 🇪🇸 Joan Balcells (qualified) • # 🇦🇺 Wayne Arthurs (first round) • # 🇫🇷 Arnaud Di Pasquale (qualified) • # 🇸🇪 Magnus Gustafsson (qualified) • # Marc Rosset (qualified) • # Michel Kratochvil (first round) • # 🇧🇪 Xavier Malisse (qualifying competition) • # 🇧🇪 Olivier Rochus (qualifying competition) • # 🇪🇸 Sergi Bruguera (qualified) • # Ivan Ljubičić (qualifying competition) • # 🇦🇷 Agustín Calleri (qualified) • # 🇦🇷 Mariano Zabaleta (qualifying competition, retired due to an illness) • # 🇪🇸 Félix Mantilla (qualifying competition) • # 🇫🇷 Antony Dupuis (qualified)

Qualifiers

• # 🇦🇷 Agustín Calleri • # 🇪🇸 Albert Portas • # 🇪🇸 Joan Balcells • # 🇫🇷 Antony Dupuis • # 🇫🇷 Arnaud Di Pasquale • # 🇸🇪 Magnus Gustafsson • # Marc Rosset • # 🇪🇸 Sergi Bruguera

Lucky loser

Qualifying draw

First qualifier

Second qualifier

Third qualifier

Fourth qualifier

Fifth qualifier

Sixth qualifier

Seventh qualifier

Eighth qualifier