| 2023 Banja Luka Challenger | |
|---|---|
| Date | 7–13 August |
| Edition | 21st |
| Surface | Clay |
| Location | Banja Luka, Bosnia and Herzegovina |
| Champions | |
| Singles | |
 Dino Prižmić | |
| Doubles | |
 Victor Vlad Cornea /  Philipp Oswald | |
The 2023 Banja Luka Challenger was a professional tennis tournament played on clay courts. It was the 21st edition of the tournament which was part of the 2023 ATP Challenger Tour. It took place in Banja Luka, Bosnia and Herzegovina from 7 to 13 August 2023.
| Country | Player | Rank1 | Seed |
|---|---|---|---|
 HUN | Fábián Marozsán | 89 | 1 |
 ITA | Marco Cecchinato | 108 | 2 |
 SVK | Alex Molčan | 120 | 3 |
 FRA | Benoît Paire | 126 | 4 |
 BEL | Kimmer Coppejans | 160 | 5 |
 ARG | Mariano Navone | 168 | 6 |
 CZE | Zdeněk Kolář | 171 | 7 |
 BIH | Damir Džumhur | 172 | 8 |
The following players received wildcards into the singles main draw:
The following players received entry into the singles main draw as special exempts:
The following player received entry into the singles main draw as an alternate:
The following players received entry from the qualifying draw:
Mirza Bašić 
Akira Santillan Aldin Šetkić 
Marko Topo 
Eric Vanshelboim
Miljan Zekić Dino Prižmić def. Kimmer Coppejans 6–2, 6–3. Victor Vlad Cornea / Philipp Oswald def. 
Andrey Golubev / Denys Molchanov 3–6, 6–1, [15–13].The 2010 Banja Luka Challenger was a professional tennis tournament played on outdoor red clay courts. It was the ninth edition of the tournament which was part of the 2010 ATP Challenger Tour. It took place in Banja Luka, Bosnia and Herzegovina between 13 and 21 September 2010.
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.
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.
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.
The 2014 Banja Luka Challenger was a professional tennis tournament played on clay courts. It was the thirteenth edition of the tournament which was part of the 2014 ATP Challenger Tour. It took place in Banja Luka, Bosnia and Herzegovina from 8 to 14 September 2014.
The 2015 Banja Luka Challenger was a professional tennis tournament played on clay courts. It was the fourteenth edition of the tournament which was part of the 2015 ATP Challenger Tour. It took place in Banja Luka, Bosnia and Herzegovina from 14 to 20 September 2015.
The 2016 Banja Luka Challenger was a professional tennis tournament played on clay courts. It was the fifteenth edition of the tournament which was part of the 2016 ATP Challenger Tour. It took place in Banja Luka, Bosnia and Herzegovina from 12 to 18 September 2016.
The 2017 Banja Luka Challenger was a professional tennis tournament played on clay courts. It was the sixteenth edition of the tournament which was part of the 2017 ATP Challenger Tour. It took place in Banja Luka, Bosnia and Herzegovina from 11 to 17 September 2017.
The 2017 Slovak Open was a professional tennis tournament played on indoor hard courts. It was the 18th edition of the tournament which was part of the 2017 ATP Challenger Tour. It took place in Bratislava, Slovakia between 6 and 12 November 2017.
The 2017 Trofeo Città di Brescia was a professional tennis tournament played on carpet courts. It was the fourth edition of the tournament which was part of the 2017 ATP Challenger Tour. It took place in Brescia, Italy between 13 and 19 November 2017.
The 2018 Banja Luka Challenger was a professional tennis tournament played on clay courts. It was the seventeenth edition of the tournament which was part of the 2018 ATP Challenger Tour. It took place in Banja Luka, Bosnia and Herzegovina from 10 to 16 September 2018.
The 2019 Bratislava Open was a professional tennis tournament played on clay courts. It was the first edition of the tournament which was part of the 2019 ATP Challenger Tour. It took place in Bratislava, Slovakia between 17 and 23 June 2019.
The 2019 Banja Luka Challenger was a professional tennis tournament played on clay courts. It was the eighteenth edition of the tournament which was part of the 2019 ATP Challenger Tour. It took place in Banja Luka, Bosnia and Herzegovina from 9 to 15 September 2019.
The 2021 Bratislava Open was a professional tennis tournament played on clay courts. It was the 2nd edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Bratislava, Slovakia between 7 and 13 June 2021.
The 2021 Banja Luka Challenger was a professional tennis tournament played on clay courts. It was the nineteenth edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Banja Luka, Bosnia and Herzegovina from 6 to 12 September 2021.
The 2021 Bucharest Challenger was a professional tennis tournament played on clay courts. It was the 1st edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Bucharest, Romania between 20 and 26 September 2021.
The 2022 Challenger di Roseto degli Abruzzi was a professional tennis tournament played on clay courts. It was the 1st edition of the tournament which was part of the 2022 ATP Challenger Tour. It took place in Roseto degli Abruzzi, Italy between 7 and 13 March 2022.
The 2022 Banja Luka Challenger was a professional tennis tournament played on clay courts. It was the 20th edition of the tournament which was part of the 2022 ATP Challenger Tour. It took place in Banja Luka, Bosnia and Herzegovina from 22 to 28 August 2022.
The 2022 NÖ Open was a professional tennis tournament played on clay courts. It was the second edition of the tournament which was part of the 2022 ATP Challenger Tour. It took place in Tulln an der Donau, Austria between 5 and 10 September 2022.
The 2022 Sparkassen ATP Challenger was a professional tennis tournament played on indoor hard courts in Ortisei, Italy between 24 and 30 October 2022. It was the 13th edition of the tournament and was part of the 2022 ATP Challenger Tour.
