Calls for new paradigms in water resource management have emerged from a broad range of commentators over the past decade. These calls arose as it became increasingly clear that the pressing problems in water resource management have to be tackled from an integrated polycentric perspective, taking into account interdependent economic, societal, environmental, institutional and technological factors. Adhering to the calls, Namibia designed polycentric water management approaches, with the objective of maximising economic and social welfare in an equitable manner and without compromising the sustainability of vital rural ecosystems. Understanding the barriers to integrated and adaptive management requires a critical reflection on conventional modes of governance. In this regard, Namibia has achieved great strides by shifting from monocentric public water management systems towards strongly community-based polycentric management. This paper investigates how polycentric rural water supply reform impacts on natural resource management and water users' livelihoods in three communal areas of Namibia.