Self-management has been shown to increase perceived control over both illness and nonillness aspects of life among people with chronic conditions but has not received significant research attention among persons with multiple sclerosis (MS). Based on relationships proposed in the illness intrusiveness and disability centrality models, this study explored the relationships between subjective and objective measures of MS impact, self-management, perceived control, and subjective quality of life (SQOL). A sample of 157 adults with MS participated in this research. The results suggest that self-management is strongly associated with perceived control and that both perceived control and self-management mediate the relationship between MS impact and SQOL. The rehabilitation counseling implications of these findings are discussed. (Contains 4 figures and 1 table.)