2005 Allianz Suisse Open Gstaad – Singles

Singles
2005 Allianz Suisse Open Gstaad
Champion Gastón Gaudio
Runner-up Stanislas Wawrinka
Score6–4, 6–4

Roger Federer was the defending champion, but did not participate this year.

Gastón Gaudio won the tournament, beating Stanislas Wawrinka in the final, 6–4, 6–4.