| Date: | 10–16 September |
| Edition: | 11th |
| Surface: | Clay |
| Location: | Banja Luka, Bosnia and Herzegovina |
| Champs: |  Victor Hănescu |
| Champd: | Marin Draganja / Lovro Zovko |
The 2012 Banja Luka Challenger was a professional tennis tournament played on clay courts. It was the eleventh edition of the tournament which was part of the 2012 ATP Challenger Tour. It took place in Banja Luka, Bosnia and Herzegovina between 10 and 16 September 2012.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 Slovenia | Blaž Kavčič | 77 | 1 | |
| Björn Phau | 83 | 2 | ||
| Romania | Victor Hănescu | 102 | 3 | |
| Antonio Veić | 135 | 4 | ||
 Serbia | Dušan Lajović | 137 | 5 | |
 France | Jonathan Dasnières de Veigy | 153 | 6 | |
 Austria | Andreas Haider-Maurer | 156 | 7 | |
 Slovakia | Pavol Červenák | 177 | 8 |
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
Marcin Gawron
Carlos Gómez-Herrera
Artem SmirnovSee main article: 2012 Banja Luka Challenger – Singles.
Victor Hănescu def. Andreas Haider-Maurer, 6–4, 6–1See main article: 2012 Banja Luka Challenger – Doubles.
Colin Ebelthite / 
Jaroslav Pospíšil, 6–1, 6–1