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Mermaid and Jellyfish Amigurumi Pattern

Mermaid and Jellyfish Amigurumi Pattern
4.1★ Rating
12-15 Hours Time Needed
1.3K Made This
✂️

Intermediate Level

Ideal for those with basic crochet experience, featuring slightly more advanced stitches and techniques to expand your skills.

⏱️

Multi-Day Project

A rewarding 12+ hour journey—perfect for dedicated crafters who love detailed work.

🧸

Cute Companion

An adorable friend to cherish, handcrafted with love to bring comfort and joy for years to come.

About This Mermaid and Jellyfish Amigurumi Pattern

This pattern teaches you how to crochet a sweet mermaid doll and a tiny jellyfish friend with complete rounds and assembly instructions. Youll work in continuous spiral rounds, create curly hair strands, and shape a flattering mermaid tail with textured fins. The pattern includes measurements for eye placement, optional wiring for poseable arms, and step-by-step photos to guide finishing touches.

Mermaid and Jellyfish Amigurumi Pattern crochet pattern - detailed view of completed project

Includes full materials list, abbreviations, and detailed rounds for every piece so you can follow along easily. Ideal for stitchers who enjoy amigurumi with playful hair and intricate finishing.

Why You'll Love This Mermaid and Jellyfish Amigurumi Pattern

I absolutely love this pattern because it blends classic amigurumi shaping with playful, curly hair that really brings personality to the doll. I enjoy the step-by-step approach and the careful placement details that make the face come alive. I designed the jellyfish companion to be a quick, satisfying mini project that complements the mermaid perfectly. I find it rewarding to add optional wiring for a little poseability — it makes the finished piece feel interactive and more lifelike.

Mermaid and Jellyfish Amigurumi Pattern step 1 - construction progress Mermaid and Jellyfish Amigurumi Pattern step 2 - assembly progress Mermaid and Jellyfish Amigurumi Pattern step 3 - details and accessories Mermaid and Jellyfish Amigurumi Pattern step 4 - final assembly and finishing

Switch Things Up

I love how easy it is to personalize this mermaid — I often change the hair color to match seasons or holidays so each doll feels unique.

I sometimes use a chunkier cotton yarn and a larger hook to create a cuddly, larger version — it becomes a huggable plush in no time.

I like to swap the tail colors and add subtle stripes or gradient transitions by alternating yarns every few rounds for a custom look.

I add tiny embroidered freckles or blush to the face with pastel embroidery floss to change the doll's expression slightly.

If I want poseable arms, I insert thin twisted electrical wire; for a softer feel I skip the wire and fill arms lightly with fiberfill.

I also make a tiny outfit set — a removable shawl or crown — by crocheting small accessory pieces in contrast colors.

To make a mini keychain jellyfish, I use thinner yarn and a 1.75mm hook, then attach a small keyring through the top loop.

For a beach-themed gift, I decorate the mermaid with tiny shell beads and attach a small sequin to the tail tip for sparkle.

I sometimes change the bobble stitch to a small cluster or popcorn stitch for different hair tip textures — it slightly alters the curl look.

I recommend experimenting with eye placement and expression; moving the eyes one or two stitches can make a big difference in personality.

Common Mistakes & How to Fix Them

✗ Skipping stitch markers during continuous spiral rounds leads to losing your starting point; place a stitch marker at the end of each round and move it after you finish the next stitch. ✗ Stuffing too much at once makes shaping difficult and can distort the silhouette; stuff gradually and shape as you go, adding small amounts of fiberfill and smoothing constantly. ✗ Changing color without securing ends can cause loose seams and visible gaps; change yarns in the last stitch of the round and weave in ends securely before continuing. ✗ Not testing gauge leads to size surprises and misaligned parts; make a small gauge swatch using the recommended hook and yarn and adjust hook size if needed to match tension. ✗ Forgetting to cut and tape electrical wire ends may cause sharp points; fold, wrap with tape, and cover wire securely before inserting it into the doll for support.

Mermaid and Jellyfish Amigurumi Pattern

Create a charming handmade mermaid and a tiny jellyfish with this complete crochet pattern. Youll enjoy detailed step-by-step rounds, helpful photos, and clear assembly tips so you can bring these sea friends to life. Perfect for gifting or keeping, the pattern includes hair, tail, bra, arms, and a cute jellyfish companion. Follow the rounds carefully and enjoy the relaxing process of crocheting your own underwater duo.

Intermediate 12-15 Hours

Materials Needed for Mermaid and Jellyfish Amigurumi Pattern

— Main Fabric

  • 01
    Gazzal baby cotton 3469 (skin) 50 g 165 m (%60 cotton %40 acrylic) - approximately 1 ball
  • 02
    Gazzal baby cotton 3467 (dark green tail) - small amount (one ball if making multiple dolls)
  • 03
    Anchor baby pure cotton 00272 (light green tail) 50 g 165 m (%100 cotton) - small amount
  • 04
    Gazzal baby cotton 3414 (purple for bra and jellyfish) - small amount
  • 05
    Gazzal baby cotton 3461 (dark pink for jellyfish tentacles) - small amount
  • 06
    Gazzal baby cotton 3439 (red hair) - small amount
  • 07
    Kartopu cotton love K768 (pink tail) - small amount for alternative tail
  • 08
    Gazzal baby cotton 3448 (green for hair) - small amount for alternate hair
  • 09
    Kartopu organica K494 (for jellyfish) - small amount
  • 10
    Very little light yellow for bra details

— Tools Required

  • 01
    Crochet hook size 2.00 mm
  • 02
    2.5 mm electrical wire (used to support the head and arms if desired)
  • 03
    8 mm black safety eyes (for mermaid) - 2 pieces
  • 04
    6 mm black safety eyes (for jellyfish) - 2 pieces
  • 05
    Scissors
  • 06
    Yarn needle for sewing and weaving ends
  • 07
    Stitch markers
  • 08
    Polyester stuffing / fiber filler
  • 09
    Pliers (for electrical wire ends)
  • 10
    Fiber tweezers (optional)
  • 11
    Long needle for assembly

Progress Tracker

0% Complete

— ARM :

Info :

ARM x 2. I did not fill it because I used electrical wire. fill fiberfill every 5 rowsturns if you are not going to use it.

Round 1 :

5 sc in a magic ring (5)

Round 2 :

5 inc (10)

Round 3 :

10 sc (10)

Round 4 :

10 sc (10)

Round 5 :

10 sc (10)

Round 6 :

Bobble-3 dc (After making the bobble, switch to the side stitch without making a chain), 9 sc (10)

Round 7 :

10sc (10)

Round 8 :

(1dec 3sc)*2 repeat times (8)

Round 9 :

8 sc (8)

Round 10 :

(1inc 3 sc)*2 repeat times (10)

Round 11-19 :

10 sc (9 row) (10)

Round 20 :

(1 dec 3sc)* 2 repeat times (8)

Round 21 :

(1inc 3sc)*2 repeat times (10)

Round 22-32 :

10 sc (11 row) (10) (sew the last remaining loop into the loop next to it with the help of a needle.)

— HEAD :

Round 1 :

6 sc in a magic ring (6)

Round 2 :

6 inc (12)

Round 3 :

(1sc 1 inc)*6 repeat times (18)

Round 4 :

(2sc 1inc)* 6 repeat times (24)

Round 5 :

(1sc 1 inc), (3sc 1 inc)*5 repeat times, 2sc (30)

Round 6 :

(4sc 1inc)* 6 repeat times (36)

Round 7 :

(2sc 1inc), (5 sc 1 inc)*5 repeat times, 3sc (42)

Round 8 :

(6sc 1 inc) *6 repeat times (48)

Round 9 :

(3sc 1inc), (7sc 1 inc)* 5 repeat times, 4sc (54)

Round 10 :

(8sc 1inc)*6 repeat times (60)

Round 11-24 :

60 sc (14row) (60)

Info :

Place 8 mm safety lock eyes 9sc apart between 17th and 18th rounds.

Round 25 :

(8sc 1dec)*6 repeat times (54)

Round 26 :

(3sc 1dec), (7sc 1dec)*5 repeat times, 4sc (48)

Round 27 :

(6sc 1dec)*6 repeat times (42)

Round 28 :

(2sc 1dec)* 10 repeat times, 2 sc (32) (start adding fiberfill)

Round 29 :

(1dec 2sc)* 8 repeat times (24)

Round 30 :

(2sc 1dec)*6 repeat times (18)

Round 31 :

(1sc 1dec)*6 repeat times (12) cut the yarn long to sew

Info :

see pictures to embroider eyelashes and nose

— HAIR :

Info :

HAIR BASE - Red color or green color. Continue without cutting the yarn after base rounds.

Round 1 :

6 sc in magic ring (6)

Round 2 :

6inc (12)

Round 3 :

as BLO (1sc 1inc)* 6 repeat times (18)

Round 4 :

18 inc (36)

Round 5 :

as BLO ( (5sc 1 inc)*6 repeat times (42)

Round 6 :

(6sc 1inc)*6 repeat times (48)

Info :

Continue without cutting the yarn

Item Name (HAIR STRAND.1) :

Hair strand 1-24) 62 ch. from the 3rd chain, 60 hdc , fasten into new loop with slip stitch,1 sc switch to new loop, and start new strand of hair. Continue this process until you have 24 hair strands and cut the yarn

Item Name (HAIR STRAND.2) :

Hair strands 1-18) Go back to round 5 at the base of the hair and attach the yarn as the FLO, 62 ch. from the 3rd chain, 60 hdc , fasten into new loop with slip stitch,1 sc switch to new loop, and start new strand of hair. Continue this process until you have 18 hair strands and cut the yarn

Item Name (HAIR STRAND.3) :

Hair strands 1-6) Go back to round 3 at the base of the hair and attach the yarn as the FLO, 62 ch. from the 3rd chain, 60 hdc , fasten into new loop with slip stitch,1 sc switch to new loop, and start new strand of hair. Continue this process until you have 6 hair strands and cut the yarn

Info :

I chose to sew the wig on the doll's head myself. You can use a strong glue if you wish. If you fasten it with pins first, your job will be easier. See pictures for sewing. separate 6 strands of hair from the front. Just sew the hair in the round you made 24 hairs

— TAIL and BODY :

Info :

Start green or light pink

Round 1 :

6 sc in a magic ring (6)

Round 2 :

6sc (6)

Round 3 :

5sc, 1inc (7)

Round 4 :

7sc (7)

Round 5 :

6sc, 1inc (8)

Round 6 :

8sc (8)

Round 7 :

7sc, 1inc (9)

Round 8 :

9sc (9)

Round 9 :

8sc, 1inc (10)

Info :

start filling fiberfill

Round 10 :

10 sc (10)

Round 11 :

9sc, 1 inc (11)

Round 12 :

11 sc (11)

Round 13 :

10 sc, 1 inc (12)

Round 14 :

12 sc (12)

Round 15 :

10 sc, 2inc (14)

Round 16 :

14sc (14)

Round 17 :

10sc, (1 sc 1 inc)*2 repeat times (16)

Round 18 :

16 sc (16)

Round 19 :

(7sc 1inc)*2 repeat times (18)

Round 20 :

18 sc (18)

Round 21 :

18 sc (18)

Round 22 :

(8 sc 1inc)* 2 repeat times (20)

Round 23 :

20 sc (20)

Round 24 :

19 sc, 1inc (21)

Round 25 :

21 sc (21)

Round 26 :

20sc, 1inc (22)

Round 27 :

22 sc (22)

Round 28 :

(10 sc 1 inc)*2 repeat times (24)

Round 29 :

24 sc (24)

Round 30 :

23 sc, 1 inc (25)

Round 31 :

25 sc (25)

Round 32 :

24 sc, 1 inc (26)

Round 33 :

26 sc (26)

Round 34 :

25 sc, 1 inc (27)

Round 35 :

27sc (27)

Round 36 :

26sc, 1 inc (28)

Round 37 :

28sc (28)

Round 38 :

(6sc 1 inc)*4 repeat times (32)

Round 39 :

32 sc (32)

Round 40 :

(7sc 1 inc) *4 repeat times (36)

Round 41 :

36 sc (36)

Round 42 :

(8sc 1inc) *4 repeat times (40)

Round 43 :

40 sc (40)

Round 44 :

(9 sc 1 inc) *4 repeat times (44)

Round 45 :

44 sc (44)

Round 46 :

44 sc (44)

Round 47 :

44 sc (44)

Round 48 :

44 sc (44)

Round 49 :

(9sc 1dec) *4 repeat times (40)

Round 50 :

40 sc (40)

Round 51 :

(8sc 1dec) *4 repeat times (36)

Round 52 :

36 sc (36)

Round 53 :

(7 sc 1 dec) *4 repeat times (32)

Round 54 :

32 sc (32)

Round 55 :

32 sc (change yarn with skin color in last sc)

Round 56 :

as BLO 32 sc (32)

Round 57-70 :

32 sc (14 row) (32)

Info :

ADDING ARMS - see rounds below to add arms into the body rounds.

Round 71 :

10sc,3sc (with arm),13sc,3sc (with arm),3sc, marker here (32)

Round 72 :

10 sc (body), 7sc ( to the outside of the arm ), 13sc (body), 7 sc ( to the outside of the arm), 3 sc (body) (40)

Round 73 :

40 sc (40)

Round 74 :

(3 sc 1dec)*8 repeat times (32)

Info :

if you are going to add electrical wire, review the pictures. Cut 23 cm of electrical wire and twist the ends.

Round 75 :

(2sc 1dec)* 8 repeat times (24)

Round 76 :

(2sc 1dec)* 6 repeat times (18)

Round 77 :

(1sc 1dec) * 6 repeat times (12)

Round 78 :

12 sc (12)

Round 79 :

12 sc (12)

Round 80 :

12sc cut the yarn.

Info :

NOTE : Cut 16 cm of electrical wire and fold it in half. wrap some tape and attach it to the doll's neck as a support

Info :

sew the doll's head to the body

— WAIST DETAIL :

Info :

for the detail on the mermaid's waist, Go back to round 56 and fasten the light green thread from the back of the toy as FLO; 2ch, (2dc 1 incdc) *4 repeat times, 2 dc, 1 sc, (2dc 1 incdc)*5repeat times, 2 dc, sl st. Cut the yarn.

— MERMAID FISH TAIL :

Round 1 :

16 ch, from the 2nd chain, 15 sc, 5 ch, turn crochet (15)

Round 2 :

from the 2nd chain, 4 sc into chain, as BLO 15sc, 1 ch, turn crochet (19)

Round 3 :

as BLO 19sc, 5 ch, turn crochet (19)

Round 4 :

from the 2nd chain, 4 sc into chain, as BLO 19 sc, 1 ch, turn crochet (23)

Round 5 :

as BLO 23 sc, 1 ch, turn crochet (23)

Round 6 :

as BLO 23 sc, 1 ch, turn crochet (23)

Round 7 :

as BLO 19 sc, 1 ch, turn crochet (19)

Round 8 :

as BLO 19 sc, 1 ch, turn crochet (19)

Round 9 :

as BLO 15 sc, 1 ch, turn crochet (15)

Round 10 :

as BLO 15 sc, cut the yarn leaving long for sewing

Info :

see pictures to shape

— BRA :

Round 1 :

16 ch, from the 2nd chain, 15 sc, 1 ch turn crochet (15)

Round 2 :

as BLO 15 sc, 1 ch, turn crochet (15)

Round 3 :

as BLO 15 sc, 1 ch, turn crochet (15)

Round 4 :

as BLO 1sc, 2 hdc, 2 dc, 2 hdc,1sc, 2 hdc, 2dc, 2 hdc, 1sc, cut the yarn (15)

Info :

Yarn the needle and tighten in the middle.You can hide the yarns inside the bra. To tie yarn from edge and make 30 chains then cut yarn

— JELLYFISH PATTERN - HEAD :

Round 1 :

6 sc in a magic ring (6)

Round 2 :

6 inc (12)

Round 3 :

(1sc 1 inc)*6 repeat times (18)

Round 4 :

(2sc 1inc)* 6 repeat times (24)

Round 5 :

(1sc 1 inc), (3sc 1 inc)*5 repeat times, 2sc (30)

Round 6 :

(4sc 1inc)* 6 repeat times (36)

Round 7 :

(2sc 1inc), (5 sc 1 inc)*5 repeat times, 3sc (42)

Round 8-16 :

42 sc (9 row) (42)

Round 17 :

(5 sc 1 dec)* 6 repeat times (36)

Round 18 :

as BLO 36 sc. Cut the yarn (36)

Info :

Note: 6mm safety lock eyes, placed 6 sc apart between rounds 13 and 14th

— LOWER BASE :

Round 1 :

8sc in magic ring (8)

Round 2 :

8 inc (16)

Round 3 :

as BLO (1 sc 1 inc)* 8 repeat times (24)

Round 4 :

(1sc 1inc)* 12 repeat times cut the yarn long for sewing (36)

Item Name (sewing Tentacles (8 pieces)) :

for tentacles go back to round 3 and fasten yarn as FLO; Make 21 chains, from chain 2, 20 sc, fasten into new loop with slip stitch,1 sc switch to new loop, and start new tentacle.

Info :

go back to round 18 of jellyfish's head and fasten yarn as FLO, 36 incdc, sl st.

Assembly Instructions

  • Place 8 mm safety eyes on the mermaid head between rounds 17 and 18, 9 single crochet stitches apart, then secure the backs tightly.
  • Sew the wig to the head by separating 6 hair strands at a time and stitching each group into the round where you made 24 hair strands; pin the wig placement before sewing for accuracy.
  • Attach arms into the body at Round 71 positions: insert the arm loops into the body opening, align, then sew firmly using a yarn needle and mattress or whipstitch.
  • Sew the head to the body by inserting the taped/folded neck wire support into the body, align the neck opening and sew evenly around to secure the head.
  • Sew the mermaid fish tail pieces together and attach the fins to the bottom of the tail, shaping with pins before final sewing for symmetry.
  • For the jellyfish, sew the tentacles into the lower base and then attach the base to round 18 of the jellyfish head, fastening yarn as FLO and working 36 incdc then sl st to secure.

Important Notes

  • 💡Work each round in a continuous spiral and use a stitch marker to mark the end of each round to avoid visible seams.
  • 💡Stuff gradually and shape as you go; start stuffing the body when instructed and do not overstuff the head to maintain proper proportions.
  • 💡If using electrical wire for support, fold and wrap the ends with tape before inserting to prevent sharp edges and secure position.
  • 💡When changing yarn color, make the change in the last stitch of the round to create a cleaner color transition.
  • 💡Sew parts with pins placed first to check positioning and symmetry before permanent stitching.

This mermaid and jellyfish set is a delightful project that combines playful curls, a sleek tail, and a tiny, charming companion. Its detailed rounds and pictures guide you through each step to create a toy full of character and personality. Perfect for handmade gifts and display, this duo will brighten any shelf or nursery. 🧶✨

You ask,

we answer.

FAQs

What size will the finished piece be?

The finished mermaid measures approximately 25-30 cm tall depending on yarn tension and hook size; the jellyfish is a small companion about 6-8 cm tall.

Can I use different yarn weights for this pattern?

Yes, you can use different yarn weights, but the final size will change; use an appropriate hook for your chosen yarn and adjust stuffing and eye sizes accordingly.

Do I need prior crochet experience for this pattern?

This pattern is rated intermediate, so familiarity with single crochet, increases, decreases, working in BLO/FLO, and bobble stitches is recommended for best results.

How long does this project typically take to complete?

Most crafters finish this multi-piece project over several days; expect roughly 12-15 hours depending on experience and how many details (hair strands, wiring) you add.