2013 Swedish Open – Men's singles

David Ferrer was the defending champion, but withdrew before the beginning of the tournament because of an ankle injury. Carlos Berlocq won the title, defeating Fernando Verdasco in the final, 7–5, 6–1.

Seeds
The top four seeds receive a bye into the second round. • # 🇨🇿 Tomáš Berdych (quarterfinals)

• # 🇪🇸 Nicolás Almagro (quarterfinals)

• # 🇦🇷 Juan Mónaco (quarterfinals)

• # 🇪🇸 Tommy Robredo (second round)

• # 🇧🇬 Grigor Dimitrov (semifinals)

• # 🇷🇸 Viktor Troicki (second round)

• # 🇦🇷 Horacio Zeballos (first round)

• # 🇪🇸 Fernando Verdasco (final)

Seeds
• # 🇩🇪 Julian Reister (qualified)

• # 🇷🇴 Marius Copil (qualifying competition, lucky loser)

• # 🇩🇪 Matthias Bachinger (qualifying competition)

• # 🇦🇷 Diego Sebastián Schwartzman (qualified)

• # Antonio Veić (qualified)

• # 🇦🇷 Renzo Olivo (second round)

• # Henri Laaksonen (qualified)

• # 🇮🇪 James McGee (second round)

Qualifiers
• # 🇩🇪 Julian Reister

• # Henri Laaksonen

• # Antonio Veić

• # 🇦🇷 Diego Sebastián Schwartzman

Lucky loser

 * 1) 🇷🇴 Marius Copil