| Date: | 7–15 September |
| Edition: | 12th |
| Surface: | Clay |
| Champs: | Aljaž Bedene |
| Champd: | Marin Draganja / Nikola Mektić |
The 2013 Banja Luka Challenger was a professional tennis tournament played on clay courts. It was the twelfth edition of the tournament which was part of the 2013 ATP Challenger Tour. It took place in Banja Luka, Bosnia and Herzegovina from 7 to 15 September 2013.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 Italy | Filippo Volandri | 101 | 1 | |
 Slovenia | Aljaž Bedene | 106 | 2 | |
| Julian Reister | 117 | 3 | ||
 Argentina | Diego Sebastián Schwartzman | 133 | 4 | |
 Ukraine | Oleksandr Nedovyesov | 153 | 5 | |
| Simon Greul | 161 | 6 | ||
 Czech Republic | Jan Mertl | 177 | 7 | |
| Italy | Marco Cecchinato | 186 | 8 |
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
Piotr Gadomski
Danilo PetrovićThe following players received entry as a lucky losers:
Ivan BjelicaSee main article: 2013 Banja Luka Challenger – Singles.
Diego Schwartzman 6–3, 6–4See main article: 2013 Banja Luka Challenger – Doubles.
Oleksandr Nedovyesov 6–4, 3–6, [10–6]