This article presents findings of a larger research project regarding effective leadership practices in language immersion programs. The purpose of this study was to discover actions, knowledge, and skills that immersion leaders of successful programs exhibit. Using a basic qualitative model, immersion leaders, teachers, and parents at three schools were interviewed. The findings indicate that the immersion leader must establish a positive culture through building trust, building community with parents and teachers, and showing commitment to the program. In addition, the leader must provide program and teacher support in a variety of ways, including the provision of professional development, differentiated professional development for international teachers, resources, and leadership opportunities. Finally, effective immersion leaders must possess specific knowledge and skills to lead a successful immersion program, including program knowledge, advocacy skills, and the ability to apply a shared leadership model. Immersion leaders can learn from the applications for practice in their respective settings.