2018 Swedish Open – Singles

David Ferrer was the defending champion, but lost in the second round to Casper Ruud.

Fabio Fognini won the title, defeating Richard Gasquet in the final, 6–3, 3–6, 6–1.

Seeds
The top four seeds receive a bye into the second round. • #🇦🇷 Diego Schwartzman (second round)

• #🇪🇸 Pablo Carreño Busta (quarterfinals)

• #🇮🇹 Fabio Fognini (champion)

• #🇫🇷 Richard Gasquet (final)

• #🇪🇸 Fernando Verdasco (semifinals)

• #🇦🇷 Leonardo Mayer (first round)

• #🇪🇸 David Ferrer (second round)

• #🇦🇺 John Millman (second round)

Seeds
• # 🇫🇷 Corentin Moutet (qualified)

• # Henri Laaksonen (qualifying competition, lucky loser)

• # 🇫🇷 Calvin Hemery (qualifying competition)

• # 🇮🇹 Simone Bolelli (qualified)

• # Cristian Garín (qualifying competition)

• # 🇦🇷 Juan Ignacio Londero (qualified)

• # Viktor Galović (qualifying competition)

• # 🇨🇿 Zdeněk Kolář (qualified)

Qualifiers
• # 🇫🇷 Corentin Moutet

• # 🇦🇷 Juan Ignacio Londero

• # 🇨🇿 Zdeněk Kolář

• # 🇮🇹 Simone Bolelli

Lucky loser

 * 1)  Henri Laaksonen