2018 Banja Luka Challenger

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.

Seeds

 * 1 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:
 * 🇧🇷 Thomaz Bellucci

The following players received entry from the qualifying draw:
 * 🇦🇷 Federico Coria
 * 🇷🇺 Aslan Karatsev
 * 🇧🇬 Alexandar Lazov
 * 🇮🇹 Andrea Vavassori

Singles

 * 🇮🇹 Alessandro Giannessi def. 🇦🇷 Carlos Berlocq 6–7(6–8), 6–4, 6–4.

Doubles

 * 🇸🇰 Andrej Martin / Hans Podlipnik Castillo def. 🇱🇹 Laurynas Grigelis / 🇮🇹 Alessandro Motti 7–5, 4–6, [10–7].