2017 HJK season

The 2017 season is Helsingin Jalkapalloklubi's 109th competitive season. HJK are Finlands most successful football club in terms of titles, 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.

After finishing 2nd in the 2016 Veikkausliiga season, HJK entered the 2017–18 UEFA Europa League first qualifying round.

Winter
In:

Out:

Trial:

Summer
In:

Out:

Appearances and goals

 * colspan="14"|Players from Klubi-04 who appeared:
 * colspan="14"|Players from Klubi-04 who appeared:


 * colspan="14"|Players who left HJK during the season:
 * colspan="14"|Players who left HJK during the season:


 * colspan="14"|Players away from the club on loan:
 * colspan="14"|Players away from the club on loan:


 * }