Vienna Open 2003
Roger Federer won the title, beating Carlos Moya 6–3 6–3 6–3 in the final.
Main draw 32 players
- 1🇨🇭Roger FedererFinal · Champion
- 2🇪🇸Carlos MoyaFinal · Lost to Roger Federer
- 3🇨🇿Jiri NovakRound of 32 · Lost to Feliciano Lopez
- 4🇳🇱Sjeng SchalkenRound of 16 · Lost to Tim Henman
- 5🇦🇷Agustin CalleriRound of 16 · Lost to Max Mirnyi
- 6🇪🇸Tommy RobredoRound of 32 · Lost to Jurgen Melzer
- 7🇨🇱Nicolas MassuRound of 32 · Lost to Juan Ignacio Chela
- 8🇪🇸Albert CostaRound of 16 · Lost to Jonas Bjorkman
- 🇧🇾Max MirnyiSemifinals · Lost to Roger Federer
- 🇬🇧Tim HenmanSemifinals · Lost to Carlos Moya
- 🇪🇸Feliciano LopezQuarterfinals · Lost to Max Mirnyi
- 🇫🇮Jarkko NieminenQuarterfinals · Lost to Roger Federer
- 🇸🇪Jonas BjorkmanQuarterfinals · Lost to Tim Henman
- 🇩🇪Nicolas KieferQuarterfinals · Lost to Carlos Moya
- 🇦🇷Juan Ignacio ChelaRound of 16 · Lost to Jarkko Nieminen
- WC🇦🇹Jurgen MelzerRound of 16 · Lost to Nicolas Kiefer
- Q🇸🇰Karol BeckRound of 16 · Lost to Roger Federer
- WC🇦🇹Stefan KoubekRound of 16 · Lost to Feliciano Lopez
- 🇺🇸Vincent SpadeaRound of 16 · Lost to Carlos Moya
- WC🇦🇹Alexander PeyaRound of 32 · Lost to Nicolas Kiefer
- Q🇩🇪Alexander WaskeRound of 32 · Lost to Sjeng Schalken
- 🇪🇸David FerrerRound of 32 · Lost to Roger Federer
- Q🇮🇹Davide SanguinettiRound of 32 · Lost to Vincent Spadea
- 🇨🇱Fernando GonzalezRound of 32 · Lost to Carlos Moya
- 🇮🇹Filippo VolandriRound of 32 · Lost to Jonas Bjorkman
- 🇺🇸James BlakeRound of 32 · Lost to Karol Beck
- 🇺🇸Jan Michael GambillRound of 32 · Lost to Max Mirnyi
- 🇸🇰Karol KuceraRound of 32 · Lost to Jarkko Nieminen
- 🇦🇷Mariano ZabaletaRound of 32 · Lost to Agustin Calleri
- 🇷🇺Nikolay DavydenkoRound of 32 · Lost to Stefan Koubek
- 🇦🇲Sargis SargsianRound of 32 · Lost to Albert Costa
- Q🇮🇹Stefano PescosolidoRound of 32 · Lost to Tim Henman