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Aims: This study was conducted for translation, cultural adaptation, and validation of the Persian version of the Copenhagen multi-centre psychological infertility-fertility problem stress scales (COMPI-FPSS). Study Design: This study was a methodological study. Place and Duration of Study: This research was done in an infertility clinic of an educational hospital in Rasht (north of Iran), from November 2019 to January 2020. Methodology: This study was performed in two phases including tool translation and psychometric testing. Totally, 200 infertile people selected through convenience sampling among subjects met inclusion criteria were included in the study. After obtaining permission from the original tool designer, the COMPI-FPSS (14 items) was translated into Persian using the forward-backward method. Face, content, and construct validity, as well as internal consistency (Cronbach's alpha coefficient and McDonald's coefficient omega) were evaluated, and test-retest was conducted. The data were analyzed using exploratory factor analysis (EFA) by SPSS software Ver. 16. Results: EFA led to retaining of 11 items with 3 factors of “personal domain”, “marital domain”, and “social domain”, which explained 54.42% of the total variance. Cronbach's alpha coefficient for the whole questionnaire was calculated as 0.89; also the overall McDonald's coefficient omega of the questionnaire was equal to 0.82. The correlation between the two test administrations with a 14-day interval was estimated as 0.93. Conclusion: The Persian version of the COMPI-FPSS with 11 items and 3 factors had the desired cultural adaptation, validity, and reliability and it is recommended to use it in the future studies and infertility treatment centers.