The International Water Association (IWA) is a website for global water professionals, mainly engaged in various aspects of water resources research, treatment, and water cycle, to achieve the sustainable use of global water resources and solve water supply problems. Its research scope includes drinking water, wastewater, and snow water. The association has partnerships with the World Bank, the World Health Organization, and several United Nations organizations. He is the founder of the World Water Commission and holds several specialized conferences on water treatment issues every year. His publications include 21st Century Water Resources, member magazines of the International Water Association, and a series of journals, books, scientific and technological reports, and guides.

The IWA database scheme of the International Water Association includes 10 online full-text journals (plus 4 golden OA journals), which date back to the year of their publication and are not included in other databases, and all 10 are included by SCI.