The 2013–14 First League of the Republika Srpska was the eighteenth season of the First League of the Republika Srpska, the second tier football league of Bosnia and Herzegovina, since its original establishment and the eleventh as a second-tier league. It began on 17 August 2013 and ended on 4 June 2014; a winter break where no matches are played was in effect between 10 November 2013 and 16 March 2014. Mladost (VO) were the last champions, having won their one championship title in the 2012–13 season and earning a promotion to Premier League of Bosnia and Herzegovina.
Fourteen clubs were participated in this session, ten returning from the previous session, one relegated from Premier League of Bosnia and Herzegovina, two promoted from two regional Second League of the Republika Srpska.