This study was aimed at determining the relationship between personality traits, menopausal symptoms and marital adjustment in postmenopausal women. This cross-sectional study was conducted with 599 postmenopausal women who presented to the family health centers between September 2018 and February 2019. Data were collected with the Personal Information Form, Marital Adjustment Test, Cervantes Personality Scale and Menopause Rating Scale. The mean marital adjustment score of the postmenopausal women was 44.03 ± 10.75. The correlation analysis revealed significant negative correlations between marital adjustment, and personality traits and menopausal symptoms. Education level, economic status, duration of menopause, neurotic and inconsistent personality traits, somatic, psychological and urogenital symptoms were determined to be statistically significant predictive factors of marital adjustment in postmenopausal women.