2005 SAP Open – Singles

Andy Roddick was the defending champion, and won in the final 6–0, 6–4, against Cyril Saulnier.

Seeds
• # 🇺🇸 Andy Roddick (champion)

• # 🇺🇸 Andre Agassi (quarterfinals)

• # 🇩🇪 Tommy Haas (semifinals)

• # 🇺🇸 Vince Spadea (quarterfinals)

• # 🇨🇿 Jiří Novák (first round)

• # 🇺🇸 Mardy Fish (quarterfinals)

• # 🇦🇹 Jürgen Melzer (semifinals)

• # 🇧🇾 Max Mirnyi (quarterfinals)