Singles was an event at the 2014 Intersport Heilbronn Open, the final iteration of the Intersport Heilbronn Open tennis tournament.
Michael Berrer was the defending champion, but lost in the quarterfinal to Peter Gojowczyk.
Gojowczyk won the title, defeating Igor Sijsling in the final, 6–4, 7–5.
Igor Sijsling (final)
Benjamin Becker (second round)
Jiří Veselý (semifinals)
Kenny de Schepper (first round)
Blaž Kavčič (second round) Jesse Huta Galung (semifinals, retired) Dustin Brown (first round) Jan Hájek (second round)