The 2017–18 VTB United League was the 9th complete season of the VTB United League. It is also the fifth season that the league functions as the Russian domestic first tier level. It started on 5 October 2017 with the first round of the regular season and ended on 10 June 2018 with the championship game of the Final Four. CSKA Moscow were the defending champions. CSKA Moscow successfully defended its title as it won the final over Khimki.