Free knitting patterns for mermaid inspired toys, blankets, doll clothes, and more. Updated 3/20/25
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These patterns are not my designs but links to other designers who have generously shared their patterns. If you have questions about how to knit a specific pattern, please contact the designer directly.
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Free Patterns
Mermaid Tail Blanket - Adult and Child Sizes
Lapghan shaped like a mermaid tale. Sizes Child 3-10 Years, Adult. Designed by Melody Rogers. A crochet version is also available. Super Bulky weight yarn.
Tina and Nina Mermaids
Amigurumi toy mermaids with removable tails that can be interchanged with included skirt pattern to transform doll into a human girl. Mermaid measures about 5½" [14 cm] tall not including tail, and 7" [18 cm] tall including tail. Designed by Nancy Anderson for Red Heart. Designed for a 4-color Amigurumi yarn wheel that makes the 2 characters pictured. Fingering weight yarn.
Mermaid Doll and Sea Witch Doll
Knit flat and seamed. Both dolls are about 14 inches tall. Worsted weight yarn. Great stash buster. Designed by Angela chin. May only be free for a limited time.
Marvelous Mermaids
Mermaids dolls knit flat with knit flowers and seaweed. Size Height:15 cm/6 inches. DK weight yarn. Great stash buster. Designed by MurisKnits.
Under the Sea Sweater
Child sized sweater featuring a mermaid portrait that starts on front and wraps around to the back. Fingering weight yarn. Great stash buster. Under the sea Designed by Erna de Groot. Available in English and Dutch
Mermaid Doll
Playful mermaid knit flat mostly in basic stitches like garter stitch and stockinette. Total length about 54 cm / 21.5 inches long. DK weight yarn. Great stash buster. Designed by Virginie Lykins.
Mermaid
Cuddly mermaid with shell necklace and starfish hair ornament knit flat. Approximately 36cm or 14in tall. DK weight yarn. Great stash buster. Designed by Ann Franklin.
Mermaid Toy
Doll designed by Chris Collins.
Mermaid Snuggle Sack
Mermaid tail blanket is a quick knit in super bulky yarn. Rated easy by Ravelrers. Two sizes: Child and Adult. Designed by Yarnspirations Design Studio.
More Free Patterns
Siren Tail Blanket
This version of the mermaid tail blanket is not a sack, rather a lap blanket with a “foot pouch”, so it’s easier to get in and out of while providing extra warmth and whimsy. Designed by Kate Agner. Pictured project by Lineke.
Mini Mermaid
Easy small mermaid toys with removable tails to they can transform from mermaid to princess and back. Knit flat in just knit and purl stitches except for some parts of the tail. Designed originally as a kid's project. No size listed but it looks like about 4 or 4 inches. Great stash buster. Designed by Red Ted Art.
Fairy Tail
Mermaid costume with tail, top, and gloves. Size to fit 27cm / 11 inches doll like Barbie. Fingering weight yarn. Designed by AvatarOfSweetness. Pictured project by MrsNezbit who added beads to the top and didn't knit the gloves.
My Little Purrmaid
Mer-kitten cat mermaid stuffie doll knit flat. Size 30cm / 12 inches. Worsted weight yarn. Designed by Myka Watson.
Mer-Bear
Mer-bear (aka the bearmaid) teddy bear mermaid toy with fins instead of paws. The tail, body, and head are knit in one piece, with ears, paws, and tailfin knit separately. Size approximately 8 inches tall. Sport weight yarn. Designed by cheezombie.
Barbie Mermaid Tail
Slip on tail designed for 11.5 inch dolls. Designed by Emi Harrington. Pictured project by ChristineLH. Aran weight yarn.
Children's Knit Mermaid Tail
Lace mermaid tail knitting pattern with full video tutorial and written instructions. Size Children Aged 5-9 years. Designed by Marta Selter. Aran weight yarn.
Mermaid and Fairy Dish Cloths or Squares
Mermaid and Fairy wash cloths or afghan blocks in knit and purl stitches. Designed by Daisy and Storm. Web versions are free. PDFs available for purchase
- Get the free Mermaid knitting pattern
- Get the free Fairy knitting pattern
- Get the Mermaid pdf on Etsy
- Get the Fairy pdf on Etsy
Mermaid Lap Blanket
Adult sized mermaid style sack to wrap up in. Size 57 inches from tip to tail. Jean Lafitte's Mermaid Lap Blanket / Sack designed by Jennifer Gelder. Bulky weight yarn.
Mermaid
Lace ankle socks with a lace pattern resembling mermaid tails. Knit cuff down with heel flap. Includes both ankle and mid-calf options. 2 sizes. Fingering weight yarn. Designed by Barbara Giebler. Available in English and German
Patterns for Purchase
Mermaid Doll Outfit
No longer free. Mermaid doll costume for an 18" doll including body suit with tail and little capelet. DK weight yarn. Designed by Mary Maxim. A kit is also available.
Mermaid Doll
Mermaid toy with removable mermaid tail knit in the round. Designed by knitterbeeshop.
Mermaid Tail Snugglers
No longer free. Baby and child sized cozy mermaid tail snuggle blanket, knit flat with three sections in different textured patterns, with a back seam and added flippers to the end of the tail which are sewn on separate. Sizes Newborn to 7 years. DK weight yarn. Mermaid Tail Snugglers Sirdar 4708. A kit is also available.
Mermaid Toy
Mermaid measures approximately 58cm (23in), from the bottom of the fin to the top of the head. All pieces are knitted flat on straight needles. The pattern has clear row by row instructions and lots of photographs to help you along the way. You will need to be able to knit, purl, cast on and off, increase and decrease, change colours and sew seams. Designed by Sarah .Gasson.
Mermaid Tail Lapghan
Can be knit flat and used as a blanket or knit in the round to use as a cocoon. She has several patterns sized for adults, teens and children, and babies.
Joanie's Magical Day at the Beach
Treasures of the Ocean knitting patterns for doll with mermaid tail costume, dolphin, sand castle, beach blanket, pail, shovel, and shell knitting patterns with beautifully illustrated children's book with these characters. Great for playtime bwhile reading the storybook and after. Designed by Made By Devrie
Mermaid Skirt and Top
The Splash Mermaid Costume is a 2 piece pattern of a skirt with a long tail ending in fins and a cropped top. Both are knit in butterfly stitch to look like scales, only prettier. Sized for 5T but can easily be adapted. Designed by Tina Marrin. One of the patterns in New Knits on the Block. Worsted weight yarn. Pictured projects by charmingberry and missjenni
Mermaid Cloth
Finished Size: 7.75”W X 9″H
