This report is based on formative research that explores the field of faith, ecology, sustainability, and conservation in Indonesia. It examines the multifaceted strategic religious engagement of government line ministries and state bodies, civil society actors, faith-based organizations, development partners and multilateral organizations in confronting the immense problems of ecology, sustainability, and conservation in the country. The report highlights the landscape, mapping of actors and stakeholders, and their respective strategies. It also offers recommendations on how to develop the field of faith and ecology, which includes the potential development for sustainable financing.