In recent years, women’s religious associations (hey’ats) have evolved beyond their traditional ritual and religious functions to become institutions performing diverse cultural, social, supportive, and political roles. Employing a qualitative approach and grounded theory methodology, the present study examines the social functions of women’s religious associations in the city of Yazd. Data were collected through semi-structured interviews with 32 women active in these associations, selected via purposive sampling with maximum variation until theoretical saturation was reached. The data were analyzed through coding processes and category extraction. The findings revealed five primary functions: cultural-educational (Qur’an classes, sewing, and religious rulings); charitable-supportive (assistance to the needy, provision of bridal trousseaus, and securing the release of prisoners); counseling and empowerment (resolution of family problems and entrepreneurship); socio-service and recreational (pilgrimage trips and interest-free loan funds); and political (participation in demonstrations, elections, support for the resistance front, and involvement in urban activities). These findings were interpreted within the frameworks of functionalism, social capital theory, and religious civil society. The results demonstrate that women’s religious associations in Yazd have transformed into multifunctional social institutions that, in addition to fulfilling religious roles, effectively address women’s cultural, economic, psychological, social, and political needs.