In order to have a better understanding about marital satisfaction, the main aim of the current study was to survey
the relationship between big five factor personalities and marital satisfaction in student. 500 participants, who were
randomly selected from married Tehran’s Residents, completed tow questionnaires: NEO Personality Inventory
(Costa & McCrae, 1992) and Enrich Marital Satisfaction (Olson, Fournier & Druckman, 1982). There was a
positively correlated betweenmarital satisfaction scores with agreeableness (A), conscientiousness(C), openness (O)
and negatively correlated with neuroticism (N). The next stage in analysis was to use regression analysis with
marital satisfaction as the dependent variable to try and identify the best predictive model. The results are shown the
two significant predictors in the model are agreeableness (A) and conscientiousness (C).More research regarding
the studied variables can render brighter data