Financial literacy plays a critical role in ensuring human security by empowering individuals with the knowledge and skills necessary to make informed financial decisions. This paper explores the current state of financial literacy in Nigeria, its implications for human security, and the steps necessary to improve financial literacy as a means of enhancing human security. By examining various dimensions of financial literacy and their relationship to human security, this paper provides a comprehensive analysis of how financial education can serve as a catalyst for economic stability and personal well-being in Nigeria. The paper largely utilized secondary data such as books, academic journals, periodicals, and other relevant documents from recognized authorities. The paper reveals that financial literacy informs rational financial decisions, leading to low indebtedness, high savings rates, and adequate investment; financially literate individuals are better able to manage health-related expenses, secure health insurance, and access quality healthcare services; and financial literacy acts as a defense mechanism, enhancing personal security especially in this era that financial scams are prevalent. This paper recommends, among other things, for concerted effort involving education and awareness, public-private partnerships, and exposure utilization of mobile technology and digital platforms to pave the way for a financially literate and secure Nigerian population.,.