The International Water Association is the network of water professionals striving for a world in which water is wisely, sustainably and equitably managed.

Drawing exceptional professionals from more than 140 countries, the membership of the International Water Association (IWA) brings together scientists, researchers, technology companies, water and wastewater utilities, and wider stakeholders involved in water management.

As the largest membership association for the global water sector, the Association was launched in its current identity in 2000, building on a 75-year heritage of connecting water professionals around the world. IWA is an international reference for the water and sanitation industry.

The IWA membership communities contribute and develop the IWA Agendas. Meet us at the IWA World Water Congress & Exhibition, the IWA Water and Development Congress & Exhibition and our Specialist Groups Conferences worldwide. IWA is science-driven and sets the agenda with the publication of 12 scientific journals and 40+ books per year by IWA Publishing.

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From the IWA network around the world.
December 6, 2022
The call for papers is closing soon on 15 December 2022 for the 18th IWA Leading Edge Conference on Water and Wastewater Technologies taking place on 28 May &#8...
December 2, 2022
2 December 2022, Bilbao, Spain The Spanish city of Bilbao has hosted the first edition of the International Water Association’s Digital Water Summit, bringing...
November 30, 2022
As part of IWA’s mission to empower Young Water Professionals to contribute to sustainable water management, a new IWA Young Water Professionals (IWA YWP) cha...
November 17, 2022
The International Water Association (IWA) is marking UN World Toilet Day, held annually on 19 November to raise awareness of the 3.6 billion people living witho...

Blog Posts

Opinion and insights on the critical challenges facing the water sector.
December 6, 2022
I believe that without doubt we can all agree that 2022 has been an extremely positive year for groundwater for many reasons. This year, UN Water launched a ded...
December 2, 2022
The water sector has a role to play in the global effort to achieve net-zero greenhouse gas emissions and help to slow climate change. Our sector is energy-inte...
November 22, 2022
The Utility Leaders Forum (ULF) organised by IWA is an excellent platform for utility leaders to meet, expand their network and exchange knowledge among utility...
November 15, 2022
On World Toilet Day, the international community will assess its progress on providing sanitation to all. Unfortunately, while we’ve made significant advancem...

IWA Thought Leadership

Recognised for their unique and significant long-term contributions to advancing water science and management


Responding to global water challenges, IWA progressive agendas support sustainable urban and basin-related water solutions.
Skanderborg Forsyning

The Danish water utility Skanderborg Forsyning affirms that when it comes to water security in a changing climate, using nature-based solutions at the local level was never a question. Climate change projects are an opportunity to adapt using nature to deal with increased rainfalls and prevent the flooding of urban areas.

IWA Stories: Fionn Boyle

Fionn is a project engineer focused on smart water systems and a member of the Institute of Water in the UK. At Anglian Water Services, he serves on the Future Leaders board.
During the video, Fionn gives a snapshot of his journey so far in the water sector and the benefits it has afforded him.

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Specialised conferences, forums and seminars on a the key issues in water management in locations worldwide.

The Source Magazine

The latest from the International Water Association Magazine
December 01, 2022
In this webinar, you will learn how municipal wastewater treatment plants can use innovative technology to optimize energy-intensive processes, while [...]
November 29, 2022
Our current engineering mindset may not fully equip us to deal with the water challenges ahead. Ancient and indigenous values [...]
November 29, 2022
It was a long time coming, but it was certainly worth the wait. Our Copenhagen World Water Congress & Exhibition [...]
November 29, 2022
A new report produced by CDP in collaboration with Planet Tracker, High and Dry: How Water Issues Are Stranding Assets, [...]


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