2014 Düsseldorf Open – Singles

Juan Mónaco was the defending champion, but lost to Ivo Karlović in the quarterfinals.

Philipp Kohlschreiber won the title, defeating Ivo Karlović in the final, 6–2, 7–6(7–4).

Seeds
The top four seeds receive a bye into the second round. • 🇩🇪 Philipp Kohlschreiber (champion)

• 🇪🇸 Marcel Granollers (second round)

• 🇮🇹 Andreas Seppi (quarterfinals)

• João Sousa (second round)

• Lu Yen-hsun (first round)

• 🇫🇮 Jarkko Nieminen (first round)

• Ivo Karlović (final)

• Igor Sijsling (first round)

Seeds
🇺🇸 Michael Russell (first round) 🇪🇸 Pere Riba (first round) 🇩🇴 Víctor Estrella Burgos (second round) 🇦🇷 Facundo Argüello (first round) 🇦🇺 Nick Kyrgios (second round, retired) 🇸🇰 Miloslav Mečíř Jr. (second round) Mate Delić (qualified) 🇮🇪 Louk Sorensen (qualifying competition)

Qualifiers
• # 🇦🇺 Jason Kubler

• # Mate Delić

• # 🇮🇹 Alessandro Giannessi

• # 🇧🇦 Mirza Bašić