This article explores the philosophical foundations of Participatory Action Research (PAR), a dynamic approach in which participants, as key stakeholders, determine research needs, design the research framework, and collect data to achieve social change. By tracing its philosophical origins within pragmatism, critical theory, constructivism, feminist epistemology, and participatory democracy, the paper elucidates the connections between these philosophical pillars and the development of PAR. It emphasises the principles of social justice and highlights how PAR empowers communities by integrating research, education, and action, thereby transforming marginalised groups into active agents of change. The paper begins with an overview of PAR principles and then explores the underlying philosophical underpinnings that support this research approach. By examining the transformative potential of PAR on individuals, research, and society, the article underscores the importance of collaborative knowledge generation and the dismantling of power dynamics in research processes. This exploration reinforces the efficacy of PAR in addressing pressing social issues and influencing policymakers, advocating for a participatory process that prioritises equal and collaborative engagement from all stakeholders. Through this analysis, the article contributes to a deeper understanding of PAR’s role in fostering value-based research and social change.