en پژوهشي Original Research Article <p style="text-align: justify"><strong>Objective:</strong> The aim of the current study was to investigate the role of fusion beliefs and metacognitions in obsessive–compulsive symptoms in the general population.</p> <p style="text-align: justify"><strong>Methods: </strong>A sample of 200 students of Kharazmi University was selected from various faculties and completed the following questionnaires: Metacognitions Questionnaire-30 (MCQ-30), Thought-Fusion Instrument (TFI) and Maudsley Obsessive Compulsive Inventory (MOCI). Data was analyzed using Pearson correlation and multiple regression analysis.</p> <p style="text-align: justify"><strong>Results:</strong> The study showed that thought-fusion beliefs and metacognitive beliefs were positively correlated with obsessive compulsive symptoms. There were also positive correlations between subscales of thought-fusion beliefs and metacognitive beliefs and obsessive-compulsive symptoms. In regression analysis, MCQ subscales, cognitive selfconsciousness and Thought Action Fusion scale were the strongest predictors of obsessivecompulsive symptoms.</p> <p style="text-align: justify"><strong>Conclusion:</strong> Results of this study support the metacognitive model of OCD and showed that people’s thought-fusion beliefs have important role in obsessive–compulsive symptoms.</p> Thought-fusion beliefs, Metacognitive beliefs, Obsessive-compulsive symptoms 97 104 http://jpcp.uswr.ac.ir/browse.php?a_code=A-10-1-13&slc_lang=en&sid=1 Shahram Mohammadkhani sh.mohammadkhani@gmail.com Yes Department of Psychology, Faculty of Psycholgy & Educational Sciences, Kharazmi University, Tehran, Iran.