| Doubles | |
|---|---|
| 2023 Banja Luka Challenger | |
| Champions |  Victor Vlad Cornea  Philipp Oswald | 
| Runners-up |  Andrey Golubev  Denys Molchanov | 
| Score | 3–6, 6–1, [15–13] | 
Vladyslav Manafov and Oleg Prihodko were the defending champions [1] but they chose to defend their title with different partners. Manafov partnered Ivan Liutarevich but lost in the first round to Andrey Golubev and Denys Molchanov. Prihodko partnered Denis Klok but lost in the first round to Viktor Durasovic and Akira Santillan.
Victor Vlad Cornea and Philipp Oswald won the title after defeating Golubev and Molchanov 3–6, 6–1, [15–13] in the final.
 Victor Vlad Cornea /
  Victor Vlad Cornea /   Philipp Oswald (champions)
  Philipp Oswald (champions) Andrey Golubev /
  Andrey Golubev /   Denys Molchanov (final)
  Denys Molchanov (final) Constantin Frantzen /
  Constantin Frantzen /   Petr Nouza (semifinals)
  Petr Nouza (semifinals) Boris Arias /
  Boris Arias /   Federico Zeballos (semifinals)
  Federico Zeballos (semifinals)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 |  VV Cornea  P Oswald | 6 | 5 | [10] | |||||||||||||||||||||||
|  Z Kolář  N Serdarušić | 3 | 7 | [8] | 1 |  VV Cornea  P Oswald | 6 | 6 | ||||||||||||||||||||
| WC |  Vladan Tadić  M Topo | 6 | 6 | WC |  V Tadić  M Topo | 3 | 0 | ||||||||||||||||||||
|  R Stepanov  Tennyson Whiting | 1 | 4 | 1 |  VV Cornea  P Oswald | 6 | 6 | |||||||||||||||||||||
| 4 |  B Arias  F Zeballos | 6 | 66 | [14] | 4 |  B Arias  F Zeballos | 4 | 3 | |||||||||||||||||||
|  I Sabanov  M Sabanov | 3 | 78 | [12] | 4 |  B Arias  F Zeballos | 6 | 3 | [10] | |||||||||||||||||||
|  V Durasovic  A Santillan | 6 | 6 |  V Durasovic  A Santillan | 4 | 6 | [6] | |||||||||||||||||||||
|  Denis Klok  O Prihodko | 3 | 4 | 1 |  VV Cornea  P Oswald | 3 | 6 | [15] | ||||||||||||||||||||
|  M Bašić  N Fatić | 6 | 6 | 2 |  A Golubev  D Molchanov | 6 | 1 | [13] | ||||||||||||||||||||
| WC |  A Šetkić  N Zimonjić | 2 | 2 |  M Bašić  N Fatić | 3 | 4 | |||||||||||||||||||||
|  N Oberleitner  M Whitehouse | 3 | 6 | [2] | 3 |  C Frantzen  P Nouza | 6 | 6 | ||||||||||||||||||||
| 3 |  C Frantzen  P Nouza | 6 | 4 | [10] | 3 |  C Frantzen  P Nouza | 3 | 2 | |||||||||||||||||||
|  DN Mădăraș  Eric Vanshelboim | 6 | 6 | 2 |  A Golubev  D Molchanov | 6 | 6 | |||||||||||||||||||||
|  FC Jianu  N Sánchez Izquierdo | 3 | 3 |  DN Mădăraș  E Vanshelboim | 2 | 1 | ||||||||||||||||||||||
|  I Liutarevich  V Manafov | 3 | 3 | 2 |  A Golubev  D Molchanov | 6 | 6 | |||||||||||||||||||||
| 2 |  A Golubev  D Molchanov | 6 | 6 | ||||||||||||||||||||||||