HJK may stand for: Helsingin Jalkapalloklubi (HJK Helsinki), an association football club, Finland. Helsingin Jalkapalloklubi (women), an association football club, Helsinki, Finland. Helsingin Jääkiekkoklubi (HJK Helsinki), Finnish ice hockey club. Hærens Jegerkommando, Norwegian special forces unit https://en.wikipedia.org/wiki/HJK