In recent years, research on mindfulness has grown rapidly in organizational psychology and organizational behavior. Specifically, two bodies of research have emerged: One focuses on the intrapsychic processes of individual mindfulness and the other on the social processes of collective mindfulness. In this review we provide a pioneering, cross-level review of mindfulness in organizations and find that mindfulness is neither mysterious nor mystical, but rather can be reliably and validly measured, linked to an array of individual and organizational outcomes, and induced through meditative and nonmeditative practices and processes at the individual and collective levels. Our analysis of the combined literatures further reveals that although each literature is impressive, there is a significant need for multilevel mindfulness research that simultaneously examines individual and collective mindfulness and broadens its conception of context. This research agenda provides a more robust understanding of the antecedents, processes, and consequences of individual and collective mindfulness as well as more definitive evidence maximizing mindfulness and its benefits in practice.