IOSF World Otter Day takes place on the last Wednesday in May each year. The day was established by IOSF to help draw attention to otters, celebrate them, and raise awareness and support for their conservation globally. The aim is to put otters on the map, and at the forefront of people’s mind!

World Otter Day 2026 was amazing with events in 50 countries across the world! With this year being our 10th year of World Otter Day, we are so delighted to say that this was the biggest World Otter Day to date and, most importantly, raised the profile of our favourite animals!

If you want to be involved next year, its never too early to plan, then please get in touch and we can help!

World Otter Day Events Map

You can see all the amazing events planned for World Otter Day 2026 by having a look at the World Otter Day events map.

Social Media

Social media is such a great way for us to get the message of otters across to millions of people!

As we celebrate 10 years of this fantastic event, we want to make it easier than ever for everyone to get involved and share their love for otters!

Our social media support pack includes ready-made posts covering all 14 otter species, as well as content highlighting illegal wildlife trade, conservation threats, social media awareness, and promoting peaceful human–otter coexistence.

Click the button below to access the support pack and help us spread the love for otters far and wide this World Otter Day!

Use #WorldOtterDay

Tag IOSF pages so we can see what all your amazing posts!

World Otter Day Webinar

Each year, IOSF holds a World Otter Day webinar involving otter experts and enthusiasts from across the world.

The webinar is split in to two sections, a morning and evening session, to allow people from all across the world to join. Use the buttons below to watch the amazing webinars!

Click the image to discover this year’s IOSF World Otter Day Raffle prizes and get your tickets for a chance to win!

IOSF World Otter Day 2025

Please read all about the amazing events that took place across the world for World Otter Day 2025. Of course, we can’t mention them all, but here is a snap shot of what was done and achieved.

Previous Years

IOSF
World Otter Day
Grants

Every year IOSF offers three grants of £250 for small World Otter Day events.

In 2026, we are delighted to be able to offer a fourth grant.

The IOSF World Otter Day 2026 grants are as follows:

Ways to help otters

Learn more about what you can do to help otters, both at World Otter Day and other times of the year!

©Tony Goy Photography