| 2016 Heilbronner Neckarcup | |
|---|---|
| Date | 9–15 May |
| Edition | 3rd |
| Draw | 32S / 16D |
| Prize money | €64,000+H |
| Surface | Clay |
| Location | Heilbronn, Germany |
| Champions | |
| Singles | |
 Nikoloz Basilashvili | |
| Doubles | |
 Sander Arends /  Tristan-Samuel Weissborn | |
The 2016 Heilbronner Neckarcup was a professional tennis tournament played on clay courts. It was the third edition of the tournament which was part of the 2016 ATP Challenger Tour. It took place in Heilbronn, Germany between 9 and 15 May 2016.
| Country | Player | Rank1 | Seed |
|---|---|---|---|
 LTU | Ričardas Berankis | 55 | 1 |
 ARG | Horacio Zeballos | 91 | 2 |
 ESP | Albert Montañés | 100 | 3 |
| ESP | Daniel Muñoz de la Nava | 101 | 4 |
 JPN | Yoshihito Nishioka | 104 | 5 |
 GER | Jan-Lennard Struff | 107 | 6 |
| GER | Dustin Brown | 110 | 7 |
| NED | Igor Sijsling | 123 | 8 |
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
The following player received entry as a lucky loser:
Nikoloz Basilashvili def. Jan-Lennard Struff, 6–4, 7–6(7–3) Sander Arends / Tristan-Samuel Weissborn def. 
Nikola Mektić / Antonio Šančić, 6–3, 6–4
