2017–18 First League of the Federation of Bosnia and Herzegovina

The 2017–18 First League of the Federation of Bosnia and Herzegovina was the eighteenth season of the First League of the Federation of Bosnia and Herzegovina, the second tier football league of Bosnia and Herzegovina. It began on 5 August 2017 and ended on 2 June 2018. GOŠK Gabela were the last champions, having won their second championship title in the 2016–17 season and earning a promotion to Premier League of Bosnia and Herzegovina.