An increasing number of public institutions are providing Muslim chaplaincy services. However, Muslim chaplaincy is still an emerging profession and, as such, the exact function of a Muslim chaplain as well as his or her distinction from other care providers is often unclear among other professionals. To shed light on this developing field, this article presents a descriptive definition of Muslim chaplaincy together with essential elements of its Islamic foundations, professional development, and practice. It is based on a review of relevant literature, consultation with Muslim chaplains, and the views and experiences of the authors.