The 2016 Sparkassen Open is a professional tennis tournament played on clay courts. It is the 23rd edition of the tournament which is part of the 2016 ATP Challenger Tour. It will take place in Braunschweig, Germany between 4 and 10 July 2016.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 Brazil | Thomaz Bellucci | 62 | 1 | |
 Spain | Íñigo Cervantes | 75 | 2 | |
| Florian Mayer | 80 | 3 | ||
| Jan-Lennard Struff | 86 | 4 | ||
 Argentina | Leonardo Mayer | 90 | 5 | |
| Gastão Elias | 92 | 6 | ||
| Argentina | Facundo Bagnis | 96 | 7 | |
 Russian Federation | Karen Khachanov | 100 | 8 |
The following players received wildcards into the singles main draw:
The following players received entry as alternates:
Kenny de Schepper
Michal Konečný Marek MichaličkaThe following players received entry from the qualifying draw:
Juan Ignacio Galarza
Gianluca MagerThe following player received entry as a lucky loser:
| Country | Player | Country | Player | Rank1 | Seed | |
|---|---|---|---|---|---|---|
| Argentina | Guillermo Durán | Argentina | Andrés Molteni | 125 | 1 | |
 Belarus | Aliaksandr Bury |  Slovakia | Igor Zelenay | 137 | 2 | |
| James Cerretani |  Austria | Philipp Oswald | 179 | 3 | ||
 Poland | Mateusz Kowalczyk | Antonio Šančić | 191 | 4 |
The following pairs received wildcards into the doubles main draw:
Kenny de Schepper / Axel Michon Juan Ignacio Galarza / Leonardo MayerThe following pairs received entries courtesy of protected rankings into the doubles main draw:
See main article: 2016 Sparkassen Open – Singles.
Thomaz Bellucci def. Íñigo Cervantes, 6–1, 1–6, 6–3See main article: 2016 Sparkassen Open – Doubles.
James Cerretani / Philipp Oswald def. Mateusz Kowalczyk / Antonio Šančić, 4–6, 7–6(7–5), [10–2]