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.
Singles main-draw entrants
Seeds
1 Rankings are as of 28 August 2017.
Other entrants
The following players received wildcards into the singles main draw: Daniel Gimeno Traver Franjo Raspudić Nino Serdarušić Kento Tagashira
The following player received entry into the singles main draw as a special exempt: Kevin Krawietz
The following players received entry into the singles main draw as alternates: André Ghem Alexandre Müller
The following players received entry from the qualifying draw: Filip Horanský Lucas Miedler Péter Nagy Pol Toledo Bagué
The following players received entry as lucky losers: Erik Crepaldi Andreas Haider-Maurer
Champions
Singles
Maximilian Marterer def. Carlos Taberner 6–1, 6–2.
Doubles
Marin Draganja / Tomislav Draganja def. Danilo Petrović / Ilija Vučić 6–4, 6–2.