Mindful individuals orient to ongoing events and experiences in a receptive, attentive manner. This experiential mode of processing suggests implications for the perception of and response to stress situations. Using laboratory-based, longitudinal, and daily diary designs, four studies examined the role of mindfulness on appraisals of and coping with stress experiences in college students, and the consequences of such stress processing for well-being. Across the four studies (n’s = 65 − 141), results demonstrated that mindful individuals made more benign stress appraisals, reported less frequent use of avoidant coping strategies, and in two studies, reported higher use of approach coping. In turn, more adaptive stress responses and coping partially or fully mediated the relation between mindfulness and well-being. Implications for the role of mindfulness in stress and well-being are discussed.