18 Free Crochet Sea Animal Patterns for Cute Amigurumi Projects

If you’re passionate about the ocean, these crochet sea animal patterns are sure to capture your heart and inspire your next project. From adorable baby seals to cute little crabs, these amigurumi sea creatures are both charming and surprisingly realistic. You can turn them into toys, home decor, gifts, or even keychains, adding an irresistible touch of ocean charm to your life. This collection features a variety of free crochet patterns, allowing you to create your own underwater ensemble, including dolphins, stingrays, and much more.

Check out our free patterns and follow us on our Facebook Fanpage and Pinterest for more creative ideas!

1. Snowy, the Baby Seal Free Crochet Pattern

This baby seal crochet is pure serotonin in yarn form. With soft white plush yarn, tiny flippers, and peaceful closed eyes, he looks like he just finished meditating underwater. It’s so adorable that you’ll want to make a whole sleepy seal family. You can make one just like it using this free beginner-friendly crochet pattern that’s soothing to stitch and a joy to gift.

PHOTOS by Tatyana Lebedenko / Ravelry.com

Find the original pattern on Ravelry.

2. Amigurumi Ray Fish Crochet Pattern

It is the cutest purple crochet stingray you didn’t know you needed in your life. Plump, palm-sized, and full of character, this underwater buddy is a fun, fast project for anyone who loves ocean creatures. Whether he ends up as a toy or a desk mascot, one thing’s for sure: this little guy glides straight into your heart.

PHOTOS by Amigu World / Ravelry.com

Find the original pattern on amiguworld.com, or read more about it on Ravelry.

3. Dolphin&Beluga Amigurumi Keychain

Create your own crochet ocean keychain buddy – a crochet dolphin or a beluga, it’s up to you! This realistic yet tiny crochet fish brings marine charm wherever you go. Hang it on your bag, keys, or rear-view mirror and watch people ask where you got it.

PHOTOS by Chaon Lim / Ravelry.com

Find the original pattern on Ravelry.

4. Feeling Crabby Lovey Blanket

Say hi to the chubbiest little crochet crab chilling on his tiny striped beach blanket. This plush red friend is pure vacation energy. With stubby claws, a round belly, and googly eyes, he’s the definition of “I quit everything, I live here now.” Perfect as decor or a cheerful toy, this crochet project makes waves – even if you’re miles from the sea.

PHOTOS by Sonya Blackstone / Ravelry.com

Find the original pattern on blackstone-designs.com, or read more about it on Ravelry.

5. Sandy the Seahorse Amigurumi

Say hello to the cutest sea creature you’ll ever hook. This crochet seahorse is made in turquoise, with bright yellow fins and spines that pop. Change the yarn weight, and the size changes too. Tiny charm or big plushie – either way, it’s an eye-catcher and a quirky ocean-inspired decor piece.

two crochet seahorse amigurumi (small and big) in a turquoise color

PHOTOS by Mariska Vos-Bolman / Ravelry.com

Find the original pattern on mariskavos.nl, or read more about it on Ravelry.

6. Giant Hammerhead Shark Amigurumi

Massive, lovable, and a bit ridiculous – this crochet hammerhead shark is pure fun. Use it as a pillow, a toy, or a statement softie on your bed. The shape is spot-on, the texture’s soft, and the vibe? Big ocean energy with a smile. Every kid or kid-at-heart needs this underwater friend.

a big crochet hammerhead shark amigurumi

PHOTOS by Sonya Blackstone / Ravelry.com

Find the original pattern on blackstone-designs.com, or read more about it on Ravelry.

7. Cute Whale Amigurumi Crochet Pattern

This chubby crochet whale is as cute as it gets. Made with plush yarn, it’s soft, squeezable, and irresistibly huggable. Great for kids or as a cheerful room accent, this adorable creature can be reimagined with any type of yarn and give it your own twist. If you’re just getting started, this beginner-friendly crochet pattern makes a fun and quick project to brighten your day.

PHOTOS by Blake White / Ravelry.com

Find the original pattern on ribblr.com, or read more about it on Ravelry.

8. Shark Bookends

A crochet shark that lives on your bookshelf? Yes, please. This clever crochet project lets you create a book divider shaped like a shark. Its head peeking from one side of the shelf, and the tail from the other. Books fit snugly in between, making it look like the shark is swimming right through your stories.

a crochet shark serving as a book divider

PHOTOS by Sonya Blackstone / Ravelry.com

Find the original pattern on blackstone-designs.com, or read more about it on Ravelry.

9. Kamili Sea Pig

Meet the whimsical sea pig, crocheted in soft purple with a pink belly and tiny fantasy horns. Its quirky design and pastel colors give it a lighthearted, summery feel. Whether it’s a toy or a desk companion, it’s sure to bring smiles and a spark of creativity.

PHOTOS by Amigu World / Ravelry.com

Find the original pattern on amiguworld.com, or read more about it on Ravelry.

10. Amigurumi Whale

A little splash of sunshine, the yellow crochet whale brings joy in every stitch. Use thick plush yarn for a huggable version or thinner yarn for a cute miniature. It’s a great project for beginners and makes a lovely handmade gift for ocean fans of all ages.

PHOTOS by Sahar Elkady / Ravelry.com

Find the video tutorial on YouTube, or read more about it on Ravelry.

11. Mini Stingray Amigurumi

This adorable crochet stingray will instantly swim its way into your heart! Made in soft blue and turquoise tones, it looks impressively realistic and super sweet. You can bring this charming crochet sea creature to life with the help of this easy-to-follow crochet pattern – it’s a must-try for ocean lovers!

PHOTOS by Mariska Vos-Bolman / Ravelry.com

Find the original pattern on mariskavos.nl, or read more about it on Ravelry.

12. California Sea Lion

This cheerful crochet seal is packed with personality – from its goofy flippers to its lovable little face. It’s the kind of project that brings joy during and after making. Display it on your shelf, gift it to a friend, or turn it into a soft toy for a child. One thing’s for sure this cuddly cutie will bring smiles wherever it goes.

PHOTOS by Bippy Buddies / Ravelry.com

Find the original pattern on bippybuddies.blogspot.com, or read more about it on Ravelry.

13. Crochet Plush Seal Amigurumi Pattern

Meet the softest sea buddy you’ve ever hugged! This crochet seal is made from fluffy pink-and-white yarn that gives it a plush, cloud-like feel. With a big pink bow on its head, tiny brows, shiny eyes, and a cute brown nose, it’s a perfect cuddle toy and a gentle companion.

a crochet seal amigurumi made with a pink plush velvet yarn featuring a big bow on its head

PHOTOS by SmoozY Crochet Patterns / Ravelry.com

Find the original pattern on Ravelry.

14. Mini Whale Keychain Amigurumi

This tiny crochet whale may be small, but it’s full of personality. Try different yarns and shades to see how size and texture change! Finer yarns will give you a miniature sea creature, while chunky threads will result in a huggable, palm-sized whale. Fun and easy to customize!

a small crochet whale keychain amigurumi with a loop on top

PHOTOS by Mariska Vos-Bolman / Ravelry.com

Find the original pattern on mariskavos.nl, or read more about it on Ravelry.

15. Jumbo Whale

Get ready to fall in love with this giant chubby crochet whale made from jumbo yarn. It’s irresistibly round, huggable, and full of personality. The oversized stitches give it a cozy, squishy texture, perfect for cuddling or using as a playful room accent. It’s a statement piece that makes everyone smile.

a round crochet whale made of very thick yarn

PHOTOS by Slothlover1 Designs / Ravelry.com

Find the original pattern on slothlover1crochet.blogspot.com, or read more about it on Ravelry.

16. Stingray

Dive into soft ocean vibes with this adorable crochet stingray. Its plush blue body and gently curved wings make it look both realistic and delightfully friendly. The velvety yarn adds extra charm, making this sea creature a lovable toy or a whimsical decoration for any marine lover.

PHOTOS by Rose & Lily Amigurmi / Ravelry.com

Find the original pattern on roseandlilyamigurumi.com, or read more about it on Ravelry.

17. Whale Amigurumi Pattern

This crochet whale is pure cuteness. It’s fun, a little silly, and perfect for experimenting with different yarn types. Depending on what you use, your whale can come in all sizes and colors. Give it different facial expressions and you’ll end up with a whole collection of lovable ocean buddies.

plush crochet whales with big eyes and smiley faces

PHOTOS by Tatiana Didichenko / Ravelry.com

Find the video tutorials on YouTube, or read more about it on Ravelry.

18. Amigurumi Crayfish

Don’t know what a crayfish is? No worries, because this crochet sea creature will win you over with its quirky charm. It has little legs, antennae, and a big tail, and the whole thing is puffy and soft. The pattern is beginner-friendly, so you’ll crochet this funny underwater cutie in no time.