International Office for Water

Developing capacities for better water management
in France, in Europe and around the world

Support & Cooperation

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Training & Skills

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Data & Information Systems

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Networking of water stakeholders

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Last news

Climate change Integrated Water Resource Management (IWRM) Innovation
Published on 11/12/25
BIO-PLATEAUX: a new step for transboundary cooperation on the Maroni River
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Aquatic Biodiversity Aquatic ecosystem
Published on 11/12/25
Aquatic Biodiversity Letter - October 2025 - Podcasts, an engaging way to communicate with young and old alike
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Innovation Climate change Integrated Water Resource Management (IWRM) Nature-Based Solutions (NBS)
Published on 11/04/25
Science, innovation and cooperation: OiEau at the heart of the ecological transition at COP30
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Climate change Water, urban planning and sustainable development Integrated Water Resource Management (IWRM) Innovation
Published on 10/30/25
Smart cities and water management: OiEau supports local authorities in their transition to sustainable territories
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Save the date!

Feedback conference – Water Cycle & Climate Change (CECC)
from Mon 11/24/25 to Fri 11/28/25
In person
Dakar - Sénégal

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INBO World Basin Summit 2026
from Mon 06/15/26 to Fri 06/19/26
In person
Rio de Janeiro - Brazil

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See all the next events

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
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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
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Climate change Integrated Water Resource Management (IWRM) Aquatic ecosystem
DYNOBA - Boosting African Transboundary Basin Organisations for improved water resource management in the context of climate change
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
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Climate change Drinking water & Sanitation Integrated Water Resource Management (IWRM)
Technical assistance to strengthen Bolivia's Integrated Water Resources Management (IWRM) policy and governance
LATIN AMERICA & THE CARIBBEAN - Bolivia - Río Katari basin ; Río Rocha basin
January 2021 - December 2023
Ministry of Environment and Water (MMAyA)
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See all of our current projects
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