Dedicated to the conservation, protection and care of otters
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The International Otter Survival Fund (IOSF) is one of the world's leading otter charities. In the UK IOSF is the only charity solely dedicated to the conservation, protection and care of otters based on over 20 years of scientific research in the UK and around the world.

Otter numbers in the UK have increased slightly in recent years but the Eurasian otter is still classed as “Vulnerable” in the Red Data List.

Through education, research, influencing policy and partner working the IOSF is making progress but there is still much to be done here in the UK and other countries where otters are at risk.

Your support is greatly appreciated and the donations you make help secure a better future for otters in the UK and around the world.

We guarantee we will NEVER pass on your details to anyone else.


World of Otters

Our interactive map of otter locations around the world.

The Otter Shop

Visit the Otter Shop and help conservation of otters worldwide

Team Otter

IOSF's website for children.

Otters need your help

Read about the work of the International Otter Survival Fund (IOSF).

IOSF Video

IOSF YouTube video.

Illegal Trade

IOSF Report on the Illegal Trade in Otters, 2014.

World Otter Day

Wednesday 30 May 2018. Be involved and raise otter awareness.

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World of Otters

World Otter Day

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Otter Blog

Paul's Blog (external)