2013 Crédit Agricole Suisse Open Gstaad – Singles

Thomaz Bellucci was the defending champion but lost to Federico Delbonis in the first round. Mikhail Youzhny won the title, defeating Robin Haase in the final, 6–3, 6–4.

Seeds
The top four seeds receive a bye into the second round. • # Roger Federer (second round)

• # Stanislas Wawrinka (quarterfinals, retired due to back injury)

• # 🇷🇸 Janko Tipsarević (second round)

• # 🇦🇷 Juan Mónaco (quarterfinals)

• # 🇪🇸 Feliciano López (semifinals)

• # 🇷🇺 Mikhail Youzhny (champion)

• # 🇨🇿 Lukáš Rosol (first round)

• # 🇪🇸 Roberto Bautista Agut (second round, retired)

Seeds
All seeds receive a bye into the second round. • # 🇧🇷 João Souza (qualified)

• # 🇨🇿 Jan Hernych (qualified)

• # 🇩🇪 Dustin Brown (qualified)

• # 🇦🇷 Facundo Bagnis (qualifying competition)

• # 🇷🇴 Victor Crivoi (qualified)

• # 🇧🇷 Guilherme Clezar (qualifying competition)

• # 🇫🇷 Florian Reynet (qualifying competition)

• # 🇫🇷 Hugo Nys (second round)

Qualifiers
• # 🇧🇷 João Souza

• # 🇨🇿 Jan Hernych

• # 🇩🇪 Dustin Brown

• # 🇷🇴 Victor Crivoi