A network perspective to urban water governance provides a useful analytical perspective. Network approaches allow systematic descriptions and analysis of the structure of interactions among actors and technical elements. This chapter presents conceptual approaches, theoretical elements, and methodological tools related to actor networks in urban water governance. The chapter starts by presenting theoretical aspects and related research questions at the intersection of network governance and urban water governance. After an introduction to the main concepts and measures of Social Network Analysis, the chapter focuses on how network approaches can help in analyzing processes of digitalization and decentralization, not least with the concept of sociotechnical network approaches that combine actor networks with technical networks.