Future Directions of Credentialing Research in Nursing examines short- and long-term strategies to advance research on nurse certification and organizational credentialing. This report summarizes a workshop convened by the Institute of Medicine in September 2014 to examine a new framework and research priorities to guide future research on the impact of nurse credentialing and certification on outcomes for nurses, organizations, and patients. Over 100 people attended the workshop, which focused on topics such as emergent priorities for research in nursing credentialing; critical knowledge gaps and methodological limitations in the field; promising developments in research methodologies, health metrics, and data infrastructures to better evaluate the impact of nursing credentialing; and short- and long-term strategies to encourage continued activity in nursing credentialing research. Future Directions of Credentialing Research in Nursing is a record of the presentations, discussion, and break-out sessions of this event.