The hydraulic heritage and water culture in Ibero-America result in a man-made cultural landscape, where the legacies of several peoples are superimposed. Water is an element of landscape differentiation and constitutes, as a distinctive mark in the territory and local memory. The approach to the theme of water from the patrimonial point of view as a material and immaterial good, whose cultural manifestations, require efforts for its conservation and diffusion. In this context, this work intends to understand the past, present and future of Water Heritage and Culture in its interrelationship with multiculturalism and to promote the investigation of the processes of constitution of memory, identities and local values in Ibero-America. “Claiming water as a world heritage and also as a fundamental human right” is a statement included in the European Union’s 2000 Water Framework Directive which serves as a motivation in the presentation of this work highlighting the patrimonial nature of water associated with culture of the people. Water as patrimony is an inexhaustible subject of studies that exceeds the pretensions of this work. The approach to the theme of water from the patrimonial point of view as a material and immaterial good, whose cultural manifestations, derived from its use and application by the peoples, require efforts for its conservation and diffusion. This work will be supported by the research characterized by the difficulty to find the information and to deepen the knowledge related to the water heritage and culture. The explanation lies in the scarcity of materials elaborated on this subject and the difficulty in accessing the respective files and sources. The development of a civic conscience on the conservation of water heritage and culture, which presses to declare them as goods of Community interest and to include them in the heritage of the Ibero-American regions, is therefore absolutely necessary and falls within the scope of this work.