This WFDD report represents an effort to “map” the extraordinary array of faith-inspired development work and ideas in one country. The first effort of its kind, for WFDD and to our knowledge more broadly, this in-depth country review reflects the conviction that religious ideas, institutions, and leaders play critical roles in Cambodia’s development but are not well understood. The report represents a broad exploration of the landscape that aims to support Cambodia’s development efforts but also to learn some global lessons. The report reflects a year-long research project undertaken by Augustina Delaney and Michael Scharff, WFDD Princeton in Asia Fellows; they are the report’s principal authors.The effort has involved partnerships with the Princeton-in-Asia program, the Asian Faiths Development Dialogue (AFDD), the University of Cambodia, and Georgetown University’s Berkley Center for Religion, Peace, and World Affairs.