This article is about student leadership and service in Catholic secondary schools. Initially the concept of leadership through service is explored with particular reference to the educational setting. The concept of “student ministry” is then considered in the light of this leadership and service. The article subsequently reports on an exploratory research study that focused on the experiences and reflections of principals and selected staff from three Catholic secondary schools involved in student ministry. Their experiences and reflections indicate that student ministry has the capacity to offer all students the chance to develop their leadership potential through acts of service, and accentuate their civic, spiritual, religious and personal formation.