| 2011 Banja Luka Challenger | |
|---|---|
| Date | 12–18 September |
| Edition | 10th |
| Location | Banja Luka, Bosnia and Herzegovina |
| Champions | |
| Singles | |
 Blaž Kavčič | |
| Doubles | |
 Marco Crugnola /  Rubén Ramírez Hidalgo | |
The 2011 Banja Luka Challenger was a professional tennis tournament played on clay courts. It was the tenth edition of the tournament which was part of the 2011 ATP Challenger Tour. It took place in Banja Luka, Bosnia and Herzegovina between 12 and 18 September 2011.
| Country | Player | Rank1 | Seed |
|---|---|---|---|
| ESP | Pere Riba | 70 | 1 |
| SVN | Blaž Kavčič | 80 | 2 |
| ESP | Daniel Gimeno Traver | 89 | 3 |
| ITA | Flavio Cipolla | 108 | 4 |
| SVN | Grega Žemlja | 122 | 5 |
 CZE | Jaroslav Pospíšil | 126 | 6 |
| ESP | Rubén Ramírez Hidalgo | 134 | 7 |
| ESP | Pablo Carreño Busta | 167 | 8 |
The following players received wildcards into the singles main draw:
Mirza Bašić 
Ivan Bjelica Tomislav Brkić 
Goran Tošić The following players received entry from the qualifying draw:
Toni Androić Nikola Čačić Dino Marcan Ante Pavić Blaž Kavčič def. Pere Riba, 6–4, 6–1
Marco Crugnola / Rubén Ramírez Hidalgo def. Jan Mertl / 
Matwé Middelkoop, 7–6(7–3), 3–6, [10–8]
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