International Office for Water
Developing capacities for better water management
in France, in Europe and around the world
in France, in Europe and around the world
Support & Cooperation
Training & Skills
Data & Information Systems
Networking of water stakeholders
OiEau
in the grand history of the world of water
From a simple resource to be exploited, water has become a matter of sovereignty, environmental survival and cooperation at all levels. Themes, innovations, governance, methodology, legislation, etc.: discover in this video the main milestones of this global transformation and how they have shaped the history of OiEau, an association recognised as being of public utility for 35 years.
Last news
Published on 03/26/26
OiEau's Solutions & Know-how : Scientific mediation & participatory approaches
Published on 03/20/26
2026 World Water Day: Water, a source of equality and a catalyst for change
Climate change
Drinking water & Sanitation
Water usage and resources for Agricutlure
Water, urban planning and sustainable development
Circular economy & Waste
Published on 03/18/26
SOLUCIR, a €5 million European initiative to accelerate the transition to circular and decentralised water management
Published on 03/06/26
Retrospective – OiEau in the grand History of the world of Water and Environment
Discover our current projects
Climate change
Water, urban planning and sustainable development
Rainwater
Integrated Water Resource Management (IWRM)
Nature-Based Solutions (NBS)
SpongeScapes - Evidence and Solutions for improving SPONGE Functioning at LandSCAPE Scale in European Catchments for increased Resilience of Communities against Hydrometeorological Extreme Events
EUROPE -
Germany, France, Greece, Italy, Netherlands, Poland, United Kingdom, Slovenia
October 2023 - October 2027
European Union
Climate change
Water, urban planning and sustainable development
Hydromorphology
Nature-Based Solutions (NBS)
NATALIE - Accelerating and mainstreaming transformative NATure-bAsed solutions to enhance resiLIEence to climate change for diverse bio-geographical European regions
EUROPE -
France, Belgium, Spain, Greece, iceland, Italy, Lettonie, Lithuania, Norway, Netherlands, Romania, United Kingdom, Swiss
September 2023 - August 2028
European Union
DYNOBA - Boosting African Transboundary Basin Organisations for improved water resource management in the context of climate change
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Discover the project
AFRICA -
Burkina Faso, Niger, Uganda, Senegal, Chad
January 2023 - December 2025
Agence française de développement AFD; Réseau Africain des Organismes de Bassin RAOB; IRD; CNES
Technical assistance to strengthen Bolivia's Integrated Water Resources Management (IWRM) policy and governance
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Discover the project
LATIN AMERICA & THE CARIBBEAN -
Bolivia - Río Katari basin ; Río Rocha basin
January 2021 - December 2023
Ministry of Environment and Water (MMAyA)