Banja Luka or Banjaluka is the second largest city in Bosnia and Herzegovina and the largest city in Republika Srpska. Banja Luka is the traditional centre of the densely-forested Bosanska Krajina region of northwestern Bosnia. According to the 2013 census, the city proper has a population of 138,963, while its administrative area comprises a total of 185,042 inhabitants.
The University of Banja Luka is the second-oldest university in Bosnia and Herzegovina. A public university, it is the flagship institution of higher education in Republika Srpska, one of two entities of Bosnia and Herzegovina. As of 2018–19 school year, there are 11,186 enrolled students.
Marija Šestić is a Bosnian Serb singer and musician. She is most known for representing Bosnia and Herzegovina in the Eurovision Song Contest 2007 in Helsinki, Finland. Performing the song "Rijeka bez imena", Šestić collected a total of 106 points, placing eleventh out of twenty-four entries.
The Banja Luka Challenger is a tennis tournament held each September in Banja Luka, Bosnia and Herzegovina since 2002. The event is part of the ATP Challenger Tour and is played on outdoor clay courts.
The Serbia Open was a professional tennis tournament, part of the ATP 250 series and the ATP Tour. Held in Belgrade, Serbia and played on outdoor clay courts, the event was held for the first time in 2009. It was the first for Serbia, as the country had never before hosted an Association of Tennis Professionals tournament. The tournament was held as a combined men's and women's event in 2021. This marked the first time in history a WTA tournament was held in Serbia. The last edition was played in 2022, after which the tournament moved for a one-year period to Banja Luka, Bosnia and Herzegovina and rebranded as Srpska Open.
The 2009 Banja Luka Challenger was a professional tennis tournament played on outdoor red clay courts. It was the eighth edition of the tournament which was part of the 2009 ATP Challenger Tour. It took place in Banja Luka, Bosnia and Herzegovina between 14 and 20 September 2009.
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 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 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 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 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 2023 Srpska Open was a men's tennis tournament played on outdoor clay courts. It was the first edition of the event and part of the ATP Tour 250 series on the ATP Tour. It took place from 17 to 23 April 2023 at the National tennis complex in Banja Luka, Bosnia and Herzegovina.
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.
Dušan Lajović 
Jamie Murray / 
Michael Venus 
