This study deals with the holistic leadership approach, which is gaining importance among contemporary leadership theories, at a conceptual level. Holistic leadership defines leadership as a multidimensional process of consciousness by bringing together an individual's inner awareness, ethical sensitivity, cognitive integrity, and systems thinking capacity. The aim of the study is to examine the foundations of holistic leadership and explain why this approach is becoming increasingly important in today's organizational environments dominated by digitalization, complex systems, and multi-stakeholder structures. In this study, firstly, the concept of holistic leadership is discussed on the basis of holism philosophy, system theory, and the holistic thinking approach. Then, through a comparative analysis with contemporary leadership models such as transformational, servant, authentic, and spiritual leadership, it is revealed that holistic leadership constitutes a “superframe” that synthesizes these models. The study emphasized that core competencies such as mindfulness, balance, systems thinking, and ethical sensitivity constitute the behavioral foundations of holistic leadership. In the practice dimension, it was determined that holistic leadership supports innovation and employee engagement in organizations and contributes to ethical and sustainable decision-making processes. In this respect, holistic leadership has a transformative potential not only for managerial efficiency but also for human development and organizational integrity. In this respect, the study reveals that holistic leadership brings a new perspective to the leadership literature and provides a multidisciplinary theoretical basis for future research.