The a im of this research was to examine the relations between the HEXACO facets and aggressiveness components (anger, vengefulness, domination, hostility, reactive aggression, proactive aggression, and indirect aggression). On a sample of 654 participants from general population, HEXACO–60, Aggressiveness Questionnaire AVDH, Reactive–Proactive Aggression Questionnaire (RPQ), and Indirect Aggression Scale (IAS) were applied. The results of the community structure network analysis provided the most informative insight into these relations and showed that all aggressiveness components formed a single community with the Agreeableness facets. Thereby, facet Patience was the strongest correlate of anger, and hostility had the highest clustering coefficient, which brings together the Agreeableness facets and aggressiveness components. Although Honesty–Humility formed a separate community, some of its facets had strong isolated connections with indirect aggression and dominance. The results revealed that Agreeableness is a dominant correlate of aggressiveness and captures all aggressiveness components, while Honesty– Humility is related to specific components, referring to a manifestation of aggressiveness in a more subtle and indirect way.