The 2015 season was Helsingin Jalkapalloklubi's 107th competitive season. HJK is the most successful football club in Finland with 27 Finnish Championships, 12 Finnish Cup titles, 5 Finnish League Cup titles, one appearance in the UEFA Champions League group stages and one appearance in the UEFA Europa League group stages. As Veikkausliiga 2014 champions, HJK entered the 2015–16 UEFA Champions League second qualifying round. The Under-19 team, including several players from Klubi-04 participated in the 2015–16 UEFA Youth League.