Forced or early marriages represent a clear violation of human rights, as they discriminate against women and girls and constitute a form of gender-based violence, affecting both women and children. In countries like the Islamic Republic of Iran, various factors contribute to the prevalence of such marriages, leading to negative consequences for individuals, both mentally and physically. This study employs a qualitative approach with a library research method to investigate the factors and outcomes of forced and child marriages in Iran through the theoretical lens of feminist theory, legal pluralism, and structural functionalism. The findings reveal that forced and child marriages often arise from a combination of traditional, religious, cultural, and economic pressures which consequently lead to psychological distress, restrict educational opportunities, and create economic dependence on spouses. Moreover, deeply ingrained cultural and religious beliefs sometimes perpetuate the practice, making it difficult to change attitudes and behaviors. Addressing this issue requires comprehensive strategies that target the root causes of the problem, including legal reforms, awareness campaigns, and efforts to change societal norms and attitudes towards gender inequality. Only through concerted efforts can we effectively combat forced and child marriages and safeguard the rights and well-being of women and girls.