This study explores relationships between self-esteem and marital satisfaction among women in Najafabad and Fuladshahr in Iran. The case study was 757 women (381 respondents in Najafabad and 376 in Fuladshahr) who were married for at least 3 years. Findings show that there is a significant relation between age of women, marriage duration and marital satisfaction. Also generally the rate of marital satisfaction was higher between Fuladshahr women. Marital satisfaction was found to be positively correlated with self-esteem in both cities, so that higher self-esteem was associated with greater satisfaction. Another finding was that level of marital satisfaction; number of children and duration of the marriage were negatively correlated for women. The result of multiple regression analysis showed that factors including: number of children, marriage duration, the number of children and self-esteem could predict 19.5 % (R 2 =19.5) of dependant variable variations in Najafabad and age of woman, marriage duration, the number of children and self-esteem could explain 0.28 % (R 2 =0.28) of the marital satisfaction among women in Fuladshahr.