The present study aimed to investigate factors associated with sexual interest and behaviors in married older adults. The study recruited older adults from the Open Protection Centers for Elderly. A 30-items questionnaire addressing sexuality, emotional and physical intimacy, demographics, and background data was constructed. Dichotomous responses were used for intimacy and sexuality items. Data were analyzed using Chi-square tests, Pearson's correlation coefficient and Independent samples t-test. The sample consisted of 454 married participants (age range: 60-90, mean: 69.0+/-6.5). More than 50% reported having sexual desire and intercourse's average frequency of 4/month. Increasing age and marriage's years related significantly to decreased frequency of sexual intercourse (p<0.001). Participants married out of love reported higher frequency of intercourse p.a. compared with those in arranged marriages (p=0.031). Gender, age, income, married out of love and being still in love with the partner were all significantly associated with sexual interest and behaviors (p<0.05). This study demonstrates that older adults remain sexually active and a range of personal, socio-economic and interpersonal factors are associated with sexual interest. Therefore, sexual expression should be a well-informed individual's choice and not the result of societal myths or health professionals' misconceptions.