Previous research linked counternormative tendencies (e.g., conspiracy beliefs, cyberbullying, and catfishing) to narcissism-a personality trait characterized by difficulties in experiencing psychological threats. We argue that avoidance coping with stress favours attitudes and behaviours that allow for deflecting from stressful events and releasing one's stress at the expense of others. Thus, we hypothesized that avoidance coping might explain why narcissism favours counternormative tendencies. We conducted four studies (total N = 2643) in the United States and Poland to examine avoidance coping as a mediator of the relationship between narcissism and counternormative tendencies: conspiracy beliefs (Studies 1-4), willingness to conspire (Studies 2-4), cyberbullying (Studies 3-4) and catfishing (Study 4). All studies found a consistent positive indirect relationship between various forms of narcissism and counternormative tendencies via avoidance coping. These findings suggest that counternormative tendencies might reflect using maladaptive coping strategies.