Aim. The aim of the study was the assessment of personality traits level (neuroticism, extraversion, openness to experiences, agreeableness, conscientiousness) and coping styles among patients with functional dyspepsia and irritable bowel syndrome. Methods. The Neo-Five Factor Inventory of Personality (NEO-FFI) and Coping Inventory for Stressful Situation (CISS) were used in the study. Results. The subjects had a high level of agreeableness and conscientiousness and an average level of neuroticism, extraversion, openness to experiences. Moreover, the avoidance - oriented coping style dominated among the patients with functional dyspepsia and the highest level of the emotional-oriented coping style was characteristic for the irritable bowel syndrome patients. Conclusion. Lack of the effective coping is characteristic for patients with functional dyspepsia and irritable bowel syndrome. Significant differences between groups were noted in the conscientiousness level. Patients with functional dyspepsia had a high and patients with irritable bowel syndrome - an average level of conscientiousness.