2015 Heilbronner Neckarcup – Singles

Jan-Lennard Struff was the defending champion, but he lost in the semifinals to Alexander Zverev.

Zverev went on to win the title, defeating Guido Pella in the final, 6–1, 7–6(9–7).

Seeds
• # 🇧🇦 Damir Džumhur (first round)

• # 🇩🇪 Jan-Lennard Struff (semifinals)

• # Ričardas Berankis (first round)

• # 🇩🇪 Dustin Brown (first round)

• # 🇩🇪 Alexander Zverev (champion)

• # 🇩🇪 Tobias Kamke (first round)

• # 🇨🇿 Radek Štěpánek (first round)

• # 🇰🇿 Andrey Golubev (second round)