2009 ATP Studena Croatia Open Umag – Singles

Fernando Verdasco was the defending champion, but chose not to participate that year.

Nikolay Davydenko won in the final 6–3, 6–0 against Juan Carlos Ferrero.

Seeds
• # 🇷🇺 Nikolay Davydenko (champion)

• # 🇪🇸 David Ferrer (second round)

• # 🇷🇸 Victor Troicki (first round)

• # 🇦🇹 Jürgen Melzer (semifinals)

• # 🇪🇸 Juan Carlos Ferrero (final)

• # 🇪🇸 Nicolás Almagro (second round)

• # 🇮🇹 Andreas Seppi (semifinals)

• # 🇩🇪 Mischa Zverev (first round)