2009 Swedish Open – Men's singles

Tommy Robredo was the defending champion, but lost in the semifinals to Juan Mónaco.

Robin Söderling won in the final 6–3, 7–6(7–4), against Juan Mónaco.

Seeds
The top four seeds receive a bye into the second round. • # 🇪🇸 Fernando Verdasco (quarterfinals, retired due to a right calf injury)

• # 🇸🇪 Robin Söderling (champion)

• # 🇪🇸 Tommy Robredo (semifinals)

• # 🇦🇹 Jürgen Melzer (quarterfinals)

• # 🇪🇸 Nicolás Almagro (quarterfinals)

• # 🇫🇷 Florent Serra (first round)

• # 🇧🇪 Christophe Rochus (first round)

• # 🇦🇷 Máximo González (first round)