This issue of the WATERLAT-GOBACIT Network Working Papers is a product of the 2019-2020 editions of theNetwork’s Student Prize Competition, granted to master and doctoral thesis submitted by students who are members of the Network. This is the fifth issue of the Student Prize Series, and features eight articles based on doctoral and master dissertations on Agrarian Social Studies, Anthropology, Applied Ecology, Development Studies, Geography, Public Health, and Sociology, successfully defended in universities from Argentina, Brazil, Mexico, Spain, and the United Kingdom. The papers reflect the work done by the students in our Thematic Areas, in this case contributing particularly to TA2, Water and Megaprojects (Article 3), TA3, Urban Water Cycle and Essential Public Services, TA5 Water and Health, TA6, Hydrosocial Basins, Territories, and Spaces, TA8 Water-related Disasters, andTA9 Water and Production.