Background: Many questions regarding the process by which self-enhancing humour style has an effect on chronic pain individuals' adjustment remain unanswered. The aim of the present study was to analyse the association of self-enhancing humour style with adjustment in a sample of individuals with chronic pain, over and above the role of catastrophizing and pain intensity. Adjustment was assessed using measures of depression, pain interference and flourishing. We also examined the indirect association between self-enhancing humour style and adjustment via pain acceptance. Methods: The study included 427 patients with heterogeneous chronic pain conditions. The study hypotheses were tested using three multiple linear regression analyses, one for each of the criterion variables. Results: Consistent with the study hypothesis, both direct and indirect associations were found between self-enhancing humour style and depressive symptoms, pain interference and flourishing via pain acceptance. Conclusions: Self-enhancing humour style could potentially help individuals with chronic pain to gain perspective and distance themselves from the situation through the acceptance of pain-related negative emotions. Significance: Very few studies have investigated the relationship between humour styles and adjustment in chronic pain samples. The results of the current study support the idea that adaptive dispositional traits, such as patient's self-enhancing humour style, play a role in the adaptation of individuals with chronic pain. Given that the association between self-enhancing humour style and adjustment evidenced an indirect association through pain acceptance, training in the use of humour, as individuals with self-enhancing humour style do, might be a useful addition to ACT treatment. 1358 | RAMÍREZ-MAESTRE ET Al. 1 | INTRODUCTION Chronic pain interferes in the main areas of life (Breivik, Collett, Ventafridda, Cohen, & Gallacher, 2006) and has a negative impact on people's well-being. The negative effects of pain are known to be influenced by a number of psychological factors, such as an individual's tendency to catastrophize about their pain (Craner, Sperry, Koball, Morrison, & Gilliam, 2017). Pain catastrophizing has been defined as exaggerated maladaptive cognitions in response to ongoing, anticipated or recalled pain (Kapoor, Thorn, Bandy, & Clements, 2015). The detrimental role of catastrophizing in managing and coping with pain is well documented, and catastrophizing is widely acknowledged as an important predictor of pain experience (