Abstract

This article investigates the religious value systems of Catholicism and Protestantism among local ethnic minority communities in Lam Dong province, Vietnam, and their contributions to sustainable development. Drawing on the qualitative data collected through in-depth interviews and participant observation among the Co Ho, Chu Ru, and M’nong groups, the study examines how religious ethics are manifested in everyday practices across spiritual, economic, cultural, social, and environmental domains. The findings reveal that: (1) religious teachings cultivate values such as diligence, honesty, and environmental stewardship; (2) traditional cultural elements are preserved through their integration with religious rituals; (3) religious norms enhance ecological awareness by discouraging the use of harmful chemicals; and (4) religious leaders play a pivotal role in community mobilization and value transmission. This research highlights how religious institutions and ethical frameworks serve as localized mechanisms for promoting sustainable development in Vietnam’s multi-ethnic and transitional context.