Vienna Open 2001
Tommy Haas won the title, beating Guillermo Canas 6–2 7–6(6) 6–4 in the final.
Main draw 32 players
- 1🇷🇺Yevgeny KafelnikovRound of 32 · Lost to Bohdan Ulihrach
- 2🇬🇧Tim HenmanRound of 16 · Lost to Guillermo Canas
- 3🇪🇸Alex CorretjaRound of 32 · Lost to Andreas Vinciguerra
- 4🇨🇭Roger FedererQuarterfinals · Lost to Stefan Koubek
- 5🇭🇷Goran IvanisevicRound of 32 · Lost to Michael Chang
- 6🇩🇪Tommy HaasFinal · Champion
- 7🇫🇷Fabrice SantoroRound of 32 · Lost to Jurgen Melzer
- 8🇪🇸Carlos MoyaRound of 32 · Lost to Thomas Enqvist
- 🇦🇷Guillermo CanasFinal · Lost to Tommy Haas
- WC🇦🇹Stefan KoubekSemifinals · Lost to Guillermo Canas
- 🇸🇪Thomas EnqvistSemifinals · Lost to Tommy Haas
- 🇸🇪Andreas VinciguerraQuarterfinals · Lost to Thomas Enqvist
- 🇨🇿Bohdan UlihrachQuarterfinals · Lost to Tommy Haas
- 🇨🇭Michel KratochvilQuarterfinals · Lost to Guillermo Canas
- Q🇷🇴Adrian VoineaRound of 16 · Lost to Andreas Vinciguerra
- 🇪🇸Albert CostaRound of 16 · Lost to Roger Federer
- 🇪🇸Alberto Martin#359Round of 16 · Lost to Thomas Enqvist
- 🇨🇿Jiri NovakRound of 16 · Lost to Tommy Haas
- Q🇦🇹Jurgen MelzerRound of 16 · Lost to Michel Kratochvil
- 🇺🇸Michael ChangRound of 16 · Lost to Stefan Koubek
- 🇪🇸Tommy RobredoRound of 16 · Lost to Bohdan Ulihrach
- 🇸🇰Dominik HrbatyRound of 32 · Lost to Michel Kratochvil
- 🇬🇧Greg RusedskiRound of 32 · Lost to Jiri Novak
- 🇫🇷Jerome GolmardRound of 32 · Lost to Tommy Haas
- Q🇨🇿Jiri VanekRound of 32 · Lost to Stefan Koubek
- WC🇦🇹Julian KnowleRound of 32 · Lost to Adrian Voinea
- 🇨🇱Marcelo RiosRound of 32 · Lost to Tommy Robredo
- 🇦🇺Mark PhilippoussisRound of 32 · Lost to Alberto Martin
- WC🇦🇹Markus HipflRound of 32 · Lost to Albert Costa
- LL🇨🇱Nicolas MassuRound of 32 · Lost to Roger Federer
- Q🇷🇺Nikolay DavydenkoRound of 32 · Lost to Guillermo Canas
- 🇿🇦Wayne FerreiraRound of 32 · Lost to Tim Henman