Contraceptive use among women of reproductive age in Northwestern Nigeria remains notably low compared to other regions of the country and neighboring African nations. This study examines the socio-cultural and religious influences that shape family planning practices in the region, drawing on data from the 2018 Nigeria Demographic and Health Survey (NDHS) and relevant literature. Findings reveal that while limited education, spousal consent, restricted healthcare access, and economic hardship contribute to low uptake, socio-cultural norms exert the strongest influence. Cultural expectations of high fertility and male dominance in reproductive decision-making overshadow religious teachings, as the predominant religion in the region does not explicitly forbid contraceptive use. Our research concludes that engaging religious and community leaders in awareness campaigns is essential to dispel misconceptions, promote informed choices, and improve reproductive health outcomes in Northwestern Nigeria.