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Mermaid and Jellyfish Amigurumi Pattern

Mermaid and Jellyfish Amigurumi Pattern
4.8★ Rating
8-10 Hours Time Needed
3.4K Made This
✂️

Intermediate Level

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

⏱️

All-Day Adventure

Requires 8-10 hours, ideal for a full day of immersive crocheting.

🧸

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 creates a charming mermaid doll and a tiny jellyfish companion, complete with curly hair and a detailed fish tail. You will work all pieces in continuous rounds and learn techniques for attaching a wig and shaping tentacles. The pattern includes measurements, yarn suggestions, and wiring tips for poseable arms and head support. Photos are included to guide assembly and finishing touches.

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

Perfect for crocheters who enjoy character work and decorative hair details. The jellyfish is a quick, cute side project that complements the mermaid perfectly.

Why You'll Love This Mermaid and Jellyfish Amigurumi Pattern

I absolutely love this pattern because it blends classic amigurumi shaping with playful hair and tail details that really bring the doll to life. I enjoy creating the curly hair strands — they give each mermaid unique personality and volume. Sewing the wig and arranging the strands is a relaxing, creative part of the project that I always look forward to. The little jellyfish companion is quick to make and makes a wonderful finishing touch or gift set.

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 offering ideas to customize this pattern to make it your own. You can easily change yarn colors to create different mermaid personalities—try pastels for a soft look or jewel tones for a more dramatic character.

I often use a bulkier yarn and a larger hook to make a chunky cuddly version, or a thinner cotton for a tiny keychain-sized mermaid for gifts.

I recommend experimenting with different eye types: embroidery for a softer look or safety eyes for a more classic amigurumi face.

For hair variations, try longer strands, braided accents, or fewer curls for a sleeker style; you can even add felt flowers or tiny crowns for accessories.

If you want posable limbs, add stiffer wire inside the arms or use thicker craft wire for the head support to adjust tilt and pose.

I sometimes make a whole set of outfits—crochet tiny bikinis, skirts, or scarves that can be swapped to create new looks for the doll.

To vary the jellyfish, change tentacle lengths, use variegated yarn, or add beads for a playful texture and extra sparkle.

When changing yarn weight, remember to adjust hook size and check gauge by making a small swatch to match the intended scale of the pattern.

Try embroidered expressions or repositioned eyes to change the doll's personality—tiny shifts in eye placement create big differences in expression.

Finally, consider making a pair or a group, mixing hair colors and tail designs for a mermaid family collection that looks lovely on display or works as a themed gift set.

Common Mistakes & How to Fix Them

✗ Skipping stitch markers during continuous rounds causes you to lose track of the beginning; place a marker or a piece of yarn to mark the end of each round as instructed. ✗ Forgetting to add support when requested leads to a floppy head or unbalanced pose; follow the electrical wire instructions and add tape/wire where recommended for stability. ✗ Neglecting to stuff at staged points will distort shaping and make finishing difficult; stuff gradually, especially when the pattern tells you to start adding fiberfill. ✗ Pulling yarn too tight on hair strands or bra details can make them stiff and hard to sew; keep an even, moderate tension for flexible, natural-looking curls. ✗ Not placing safety eyes at the correct rounds will misalign the face; place eyes exactly as stated (for example between rounds 17 and 18) and measure spacing carefully.

Mermaid and Jellyfish Amigurumi Pattern

Make an adorable mermaid and her tiny jellyfish friend with this detailed crochet pattern. You will crochet the head, body, hair, tail and a little jellyfish with step-by-step rounds and helpful photos. The pattern includes hair wig instructions, wiring tips for poseable parts, and full assembly notes so your finished doll looks professional. Perfect for gifting or adding to your handmade collection.

Intermediate 8-10 Hours

Materials Needed for Mermaid and Jellyfish Amigurumi Pattern

— Main Fabric

  • 01
    1 ball of each yarn ball is sufficient (various colors as listed below)
  • 02
    Gazzal baby cotton 3469 (skin) 50 g 165 m (%60 cotton %40 acrylic)
  • 03
    Gazzal baby cotton 3467 (dark green tail) - approx 1 ball
  • 04
    Anchor baby pure cotton 00272 (light green tail) 50 g 165 m (%100 cotton)
  • 05
    Gazzal baby cotton 3414 (purple for bra and jellyfish)
  • 06
    Gazzal baby cotton 3461 (dark pink for jellyfish tentacles)
  • 07
    Gazzal baby cotton 3439 (red hair)
  • 08
    Kartopu cotton love K768 (pink tail)
  • 09
    Gazzal baby cotton 3448 (green for hair)
  • 10
    Kartopu organica K494 (for jellyfish)
  • 11
    Very little light yellow for bra
  • 12
    Fiber filler for stuffing

— Tools Required

  • 01
    Crochet hook size 2.00 mm
  • 02
    2.5 mm electrical wire (for head/arm support, optional)
  • 03
    Scissors
  • 04
    Yarn needle for sewing
  • 05
    Stitch markers
  • 06
    Safety eyes 8 mm (for mermaid)
  • 07
    Safety eyes 6 mm (for jellyfish)
  • 08
    Auxiliary tools such as pliers, fiber tweezers, long needle
  • 09
    Pins for assembly

Progress Tracker

0% Complete

— Arm :

Info :

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 :

10 sc (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)* 6repeat 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.

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 :

HAIR STRAND.1 (24 hair strands) 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

Info :

HAIR STRAND.2 (18 hair strands) 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

Info :

HAIR STRAND.3 (6 hair strands) 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)* 2repeat 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

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

— for the detail on the mermaid's waist :

Info :

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 (2 pieces) :

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. 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 (JELLYFISH) :

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 (36)

Info :

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

  • Sew the doll's head to the body after adding the neck support: cut 16 cm of electrical wire, fold in half, wrap with tape and attach it to the doll's neck as support before sewing the head in place.
  • Add arms by crocheting them separately and inserting into the body at Round 71 positions; attach the arms and sew securely from the inside through the rounds surrounding the arm placement.
  • Sew the wig to the head by arranging the hair strands and fastening them with pins first; then sew the hair base into the round where you made 24 hair strands and secure evenly for a full wig.
  • Attach the two mermaid fish tail pieces to the end of the tail and sew them in place using the long yarn tail, shaping them following the photos to create a fin.
  • Sew the jellyfish lower base to the head by fastening the tentacles to the base (8 pieces) and then secure the base to the jellyfish head by stitching through the designated round (fasten yarn as FLO and join).

Important Notes

  • 💡Crochet the doll with tight stitches and work each round in a continuous spiral; do not join rounds with slip stitch unless stated otherwise.
  • 💡Use a stitch marker or a piece of yarn to mark the ending of each round to avoid losing count during continuous-round crocheting.
  • 💡Stuff gradually as instructed and add fiberfill at the rounds indicated to maintain the intended shaping, especially in tapered sections.

This mermaid and jellyfish duo is a delightful project that brings ocean magic to life with charming details and whimsical hair. Perfect as a gift, a keepsake, or a display piece, each element is crafted with love and clear instructions to guide you. Enjoy making the curls, shaping the tail, and assembling your little underwater friends—happy crocheting! 🧶🌊🧵

You ask,

we answer.

FAQs

What size will the finished piece be?

The finished mermaid measures approximately 28-30 cm tall depending on yarn tension and hook size when using the recommended yarn and 2.0 mm hook.

Can I use different yarn weights for this pattern?

Yes, you can use different yarn weights, but this will affect the final size. Use a suitable hook size for your chosen yarn and expect changes in measurements.

Do I need prior crochet experience for this pattern?

This pattern is rated intermediate, so basic amigurumi experience and familiarity with increases, decreases, BLO/FLO, and working in continuous rounds are recommended.

How long does this project typically take to complete?

Most crocheters complete this project in 8-10 hours, though time may vary based on experience level, customization, and how much time you spend on hair and assembly.