As the pace of health sector transformation continues to accelerate, effective medical and interprofessional leadership continues to increase in importance. Fortunately, there is a growing body of research that can help point the way toward more effective models of leadership and its development. This work delves into a summary of evidence-based guidelines for the ‘what’ (competencies) and the ‘how’ (techniques) of healthcare leadership development. The authors aim to help practitioners understand how they can apply a universal framework for organizing leadership development across health professions, understand evidence-based principles for implementing and evolving leadership development programs in healthcare settings, and access free resources that can help them implement effective leadership development initiatives. In summarizing these best practices, the authors intend to create a ‘common language’ among healthcare professionals in support of interdisciplinary leadership development.