This paper intends to discuss the trauma caused by the Armenian genocide on the psychology of the Turks. Perpetrating a genocide is related with cruelty on one hand, on the other, implies an inability to recognize what has been committed. Turkish society suffers from their ancestors’ unrecognized guilt in its unconscious, through the repetition of similar acts. The fear to admit the guilt due to having perpetrated the Armenian genocide creates an area that validates the unfortunate events of the past. This prevents the society to internalize the ancestral legacy according to the reality principle. This attitude may be due to fear of dissociation in front of the reality of the past generations’ crimes in the Armenian genocide, which requires a mourning process. A melancholic attitude takes place in the psyche of the Turkish society causing not only suffering but inflicting suffering to others. The psychological aspect of today's Turkish society is a melancholic one.