en Clinical Psychology پژوهشي Research Article <div style="text-align: justify;"><strong>Background</strong>: Psychological well-being in couples can improve marital affairs and the mental health of the couples.&nbsp;<br> <strong>Objectives</strong>: The purpose of this study was to predict psychological well-being based on marital intimacy, resiliency, and the mental health of couples.<br> <strong>Materials and Methods</strong>: This descriptive-correlational study was conducted on 150 couples referring to the counseling centers in districts 1 and 2 of Tehran between Feb and May 2019 selected by the convenience sampling. The subjects were tested using the psychological well-being scale, resilience scale, general health questionnaire, and marital intimacy. Data were analyzed by the Pearson correlation and multiple regression analysis using SPSS V. 22 software.<br> <strong>Results</strong>: The results showed a positive correlation between psychological well-being and marital intimacy (r= 0.47, P<0.0001), whereas there was a negative correlation between psychological well-being and the mental health components (P<0.0001). Also, the results of the regression model showed that marital intimacy, resilience, and mental health were able to predict psychological well-being (P<0.0001).&nbsp;<br> <strong>Conclusion</strong>: It can be concluded that by increasing the components of psychological well-being, marital intimacy and resilience increase, whereas by an increase in psychological well-being, mental health problems decrease.</div> Psychological Well-being, Marital intimacy, Resiliency, Mental health, Couples 203 210 http://ajnpp.umsha.ac.ir/browse.php?a_code=A-10-233-1&slc_lang=en&sid=1 Nasrin Aghamiri n.aghamiri.48@gmail.com 10031947532846002886 10031947532846002886 No Department of Clinical Psychology, Faculty of Psychology and Social Sciences, Islamic Azad University, Roodehen Branch, Iran. Shahram Vaziri vaziri@riau.ac.ir 10031947532846002887 10031947532846002887 Yes Department of Clinical Psychology, Faculty of Psychology and Social Sciences, Islamic Azad University, Roodehen Branch, Iran.