| 2018 Banja Luka Challenger | ||||
|---|---|---|---|---|
| Date | 10–16 September | |||
| Edition | 17th | |||
| Surface | Clay | |||
| Location | Banja Luka, Bosnia and Herzegovina | |||
| Champions | ||||
| Singles | ||||
 Alessandro Giannessi | ||||
| Doubles | ||||
 Andrej Martin /  Hans Podlipnik Castillo | ||||
| ||||
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.
Singles main-draw entrants
Seeds
| Country | Player | Rank | Seed |
|---|---|---|---|
 ARG
|
Juan Ignacio Londero | 123 | 1 |
 ESP
|
Pablo Andújar | 126 | 2 |
| ARG
|
Marco Trungelliti | 142 | 3 |
| ESP
|
Daniel Gimeno Traver | 155 | 4 |
| SVK
|
Andrej Martin | 157 | 5 |
| CHI
|
Christian Garín | 158 | 6 |
| ARG
|
Carlos Berlocq | 172 | 7 |
| ESP
|
Pedro Martínez | 181 | 8 |
- Rankings are as of 27 August 2018.
Other entrants
The following players received wildcards into the singles main draw:
Marko Miladinović
Franjo Raspudić
Kento Tagashira- Miljan Zekić
The following player received entry into the singles main draw as a special exempt:
The following players received entry from the qualifying draw:
Champions
Singles
Main article: 2018 Banja Luka Challenger – Singles- Alessandro Giannessi def. Carlos Berlocq 6–7, 6–4, 6–4.
Doubles
Main article: 2018 Banja Luka Challenger – Doubles- Andrej Martin / Hans Podlipnik Castillo def.
Laurynas Grigelis / Alessandro Motti 7–5, 4–6, .