Emerging research shows adverse health outcomes such as diabetes, obesity, cancer, and neurotoxicity from water pollutants such as flame retardants, endocrine disruptors, and pharmaceuticals. Medical waste and energy use affects water quality and quantity. This chapter provides strategies for health professionals to promote water stewardship at personal, organizational and policy levels. Organizations such as Health Care Without Harm, Alliance of Nurses for Healthy Environments and the Ecology Center offer resources for improving education of health professionals and provide allies for change. Individual advocacy through writing op-eds, policy briefs, meeting with legislators and participation in coalitions allows health professionals to interpret the science behind the need for policy changes. Recommendations for health care curricula prepare students to develop sustainable practices through inter-professional collaboration. Environmentalists can use this information to better engage health professionals in promoting change.