The 2011 Sparkassen Open was a professional tennis tournament played on clay courts. It was the 18th edition of the tournament which was part of the 2011 ATP Challenger Tour. It took place in Braunschweig, Germany between June 26 and July 3, 2011.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 Spain | Pere Riba | 71 | 1 | |
| Tobias Kamke | 83 | 2 | ||
 Czech Republic | Lukáš Rosol | 85 | 3 | |
| Frederico Gil | 91 | 4 | ||
| Rui Machado | 97 | 5 | ||
| Thomas Schoorel | 99 | 6 | ||
| Mischa Zverev | 101 | 7 | ||
 Turkey | Marsel İlhan | 105 | 8 |
The following players received wildcards into the singles main draw:
Thomas MusterThe following players received entry as a special exemption into the singles main draw:
The following players received entry from the qualifying draw:
See main article: 2011 Sparkassen Open – Singles. Lukáš Rosol def. 
Evgeny Donskoy, 7–5, 7–6(7–2)
See main article: 2011 Sparkassen Open – Doubles. Martin Emmrich / 
Andreas Siljeström def. 
Olivier Charroin / Stéphane Robert, 0–6, 6–4, [10–7]
