Under the Sea Crochet Collection: Free Amigurumi Patterns

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Dive into summer with my Under the Sea Crochet Collection! This week’s Free Pattern Friday offers a fun selection of sea creature amigurumi patterns. From playful dolphins and gentle whales to charming seahorses and vibrant coral, these free patterns are perfect for your next crochet project.

Discover my Under the Sea Crochet Collection! Free amigurumi patterns for dolphins, whales, seahorses, and more. Perfect for summer projects! 🌞🧶

Free Under the Sea Crochet Patterns

Crochet Turtle Pattern

The Sheldon Turtle Pattern by Little Muggles is crocheted with Medium Weight Yarn [4] and a 4 mm (G) hook. The little turtle measures 4.5 inches tall by 6 inches long. He’d look perfect in your crochet aquarium!

Sheldon Turtle Pattern

Amigurumi Jellyfish

The Amigurumi Jellyfish Free Crochet Pattern from One Dog Woof was crocheted with Medium Weight Yarn [4] and a 4 mm (G) crochet hook. The finished size of the jellyfish is about 15 to 18 inches long and the head measures approximately 5 inches wide. You can make this project smaller using a lighter weight yarn and smaller crochet hook.

Amigurumi Jellyfish Pattern

Bernard the Ball Shark

Bernard the Ball Shark Pattern was deisgned by ChiWei Ranck. This crochet sea creature was crocheted with Medium Weight Yarn [4] and a 5 mm (H) hook.

Bernard the Ball Shark Pattern

Stella Starfish

Stella Starfish is a free amigurumi pattern from Spin a Yarn Crochet. This crochet Starfish was made with Medium Weight Cotton Yarn [4] and a 3.5 mm hook.

Stella Starfish Free Crochet Pattern

Scuttles the Crab

Scuttles the Crab Free Crochet Pattern from Spin a Yarn Crochet is crocheted in Medium Weight Cotton Yarn [4] with a 3.5 mm hook. You can add an optional keychain to this amigurumi if you want!

Scuttles the Crab Free Crochet Pattern

Amigurumi Seahorse

The Amigurumi Seahorse Crochet Pattern from One Dog Woof was crocheted with Aran Weight Cotton Yarn [4] and 3.75 mm (F) and 3.25 mm (D) crochet hooks. This is one of my favorite Under the Sea crochet patterns in this collection.

Amigurumi Seahorse Free Crochet Pattern

Free Crochet Pattern - Amigurumi Fish pattern

Little Amigurumi Fish

The Little Amigurumi Fishes Pattern by Oombawka Design Crochet was crocheted with Medium Weight Cotton Yarn [4] and a 3.75 mm (F) hook. These little fish are made in one-piece, from start to finish.

Little Amigurumi Fishes Pattern

Coral Reef Crochet Pattern

The Hyperbolic Crochet Motifs (Coral Reef) by Lion Brand Yarn is a collection of different coral patterns. You can select your favorites to add to your crochet aquarium project!

Coral Reef Crochet Pattern

Playful Dolphin

This Playful Dolphin Crochet Pattern was designed by Sonja Hood. The finished dolphin measures 12.5 inches long and was crocheted with Medium Weight Yarn [4] and a 5 mm (H) hook.

Playful Dolphin Free Pattern

Tiny Whale

The Tiny Whale Crochet Pattern by June Gilbank was crocheted with a 3.5 mm (E) hook and Medium Weight Yarn [4].

Tiny Whale Free Pattern

Octopus

The Octopus Amigurumi by Nadia Fuad is crocheted with Medium Weight Yarn [4] and a 5 mm (H) hook. Watch the video tutorial here.

Octopus Amigurumi Pattern

Sea Shell Pattern - Free Under the Sea crochet patterns.

Sea Conch Shell

The Sea Songs Conch Shell Pattern by Yarnspirations is crocheted with Medium Weight Yarn [4] and a 4 mm (G). The finished shell measures 3.5 inches wide by 7 inches long.

Sea Songs Conch Shell Pattern

Hermit Crab with Removable Shells

This adorable Hermit Crab Crochet Pattern by Homemade by Giggles is crocheted with Medium Weight Yarn [4] and a 4 mm (G) hook. The shells can be removed! Watch the video tutorial here.

Hermit Crab Amigurumi Pattern

Walter the Walrus

The Walter the Walrus Free Amigurumi Pattern is designed by Hooked by Kati. This adorable little guy measures 8 inches tall by 9 inches long. He is crocheted with Medium Weight Yarn [4] and 5 mm (H) hook.

Walter the Walrus Free Pattern

Bubble Seal Amigurumi Pattern

The Bubble Seal Amigurumi by I Crochet Things is so cute! You will need DK Weight Yarn and a 2.25 mm (B) hook to crochet this 2 inch tall seal.

Bubble Seal Amigurumi Pattern

I hope you enjoy creating these charming sea creatures as much as I enjoyed choosing them for this collection! Don’t forget to share your finished projects on social media and leave me a comment to let me know which crochet toy pattern is your favorite!

Happy crocheting!

Free Under the Sea Crochet Patterns Amigurumi Sea Creatures. Free patterns for dolphins, whales, seahorses, and more.

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🌊 Dive into summer with my Under the Sea Crochet Collection! 🐬 Free patterns for dolphins, whales, seahorses, and more. #Crochet #FreePatternFriday

Discover my Under the Sea Crochet Collection! Free amigurumi patterns for dolphins, whales, seahorses, and more. Perfect for summer projects! 🌞🧶

Happy crocheting!

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Rhondda Mol - Oombawka Design Crochet and Free Crochet Tutorials Designer and Blogger

About the Author

Rhondda Mol is the crochet designer and blogger behind Oombawka Design Crochet. Since 2012, she has been sharing free crochet patterns, tutorials, and expert tips to help crocheters of all levels succeed. With more than 600 published patterns, Rhondda focuses on creating clear instructions and resources to inspire creativity and confidence in the crochet community.

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Under the Sea Crochet Collection: Free Amigurumi Patterns