Top 10 Mermaid Costume Girls UK – Fancy Dress for Kids & Toddlers

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1. Tangsenyu

Tangsenyu Little Mermaid Costume for Kids Girls Ariel Outfit Dress Up with Wig

Tangsenyu - The flash fishscale printed skirt has a wide fishtail hem at the bottom, which is beautiful and comfortable. Every girl should have it! perfect for halloween costumes, carnival cosplay, photo shooting, pretend, casual playdress, party dress up, birthday, mermaid theme, summer holiday, world book day.

The mermaid dress is beautiful and elegant with exquisite lace flash fish scale collar and soft and comfortable sling. The bodice has a star-shaped ariel character cameo at the neckline as well as sequin edging, puffy satin sleeves and mesh peplum to finish the look. Elastic waist design and mesh pleated cover look like a mermaid's fin. Beautiful inspired princess mermaid fancy dress ariel costume for toddler and kid girls. Polyester. Inspired by the dress from the little mermaid, this dreamy gown has all the magical details you’d expect.
Part NumberUK40-A120


ACWOO Little Girls Mermaid Costume, Mermaid Fancy Dress Up Princess Ariel Mermaid Glitter Girls Costume for Halloween Cosplay Carnival Birthday 120cm, Princess Mermaid Costumes Set with Accessories

ACWOO - Design highlightsbeautiful all-in-one multi-tone mermaid costume with elegant organza frills at the shoulders and waist, and a short-cut covering at the waist that looks like a mermaid's fins. When your child wears this dress, photoshoot, christmas, halloween, daily games, wedding, undersea adventure theme party, she'll be ready for Halloween! Occasionsfancy mermaid dress, suitable for Little Mermaid cosplay, stage performance, carnival, birthday, etc.

Materialthe little girl fishtail dress is made of high-quality polyester, skin-friendly, breathable and non-itchy, the fabric is comfortable and soft, which can better protect the girl's soft skin. The design is beautiful and stretchy to allow it to fit and provide optimal comfort. Stretchable low-gloss fish scale print skirt with a wide layered fishtail hem.

Your girls will love it! Mermaid dress up for little girlsmermaid dress for kids includes skirt, crown, wand. With bright colors and sequin effects, dress your little girl as the most likely princess you've ever seen. Perfect giftinspired by popular children's cartoons, this popular children's clothing with cartoon characters is the perfect gift choice for your daughter or granddaughter to make your little girl happy.
Height3.5 cm (1.38 Inches)
Length31 cm (12.2 Inches)
Width22 cm (8.66 Inches)
Part NumberU5-120CMMRY220801-FBA

3. Jurebecia

Jurebecia Mermaid Dress For Girls Princess Dresses Little Girls Mermaid Costume Birthday Party Mermaid Sequin Outfit with Accessories Green 2-3 Years

Jurebecia - The product also contains 2 accessories: 1pcs Crown + 1pcs scepter. Does not harm your baby's skin. Our dress is very skin friendly and breathable.

Split short layers at the waist that look like mermaid fins. Glitter elastic fish scale patterned skirt with wide layers of fishtail hem. Your girls will love it! Perfect clothes to dress up your kids for birthday, theme party, pageant, holiday, festive occasion, cosplay, flower girl, party, role-playing, Thanksgiving, Christmas, photography prop, wedding, Halloween, special occasions etc. Cutie ruffles on the shoulder straps, slim and beautiful top.
Part NumberG019+P-100-UK5N

4. Lito Angels

Lito Angels Mermaid Princess Costumes Fancy Party Dress with Hair Wig for Kids Girls Age 3-4 Years Purple

Lito Angels - Stretchy materials to accommodate most body sizes. Great for halloween costumes, birthday or princess theme party dress up, summer holiday play wear, carnival cosplay playwear, casual playdress, pretend play dress, photo shooting outfits, or world book day dressing up clothes.

Size for baby, toddler girls or little kids, 2-3, 7-8, 4-5, age 2, 3-4, 5-6, 6-7, 8-9 and 10-12 years. One-pieced multi tone mermaid costume with cutie ruffles on the shoulder straps. Split short layers at waist looking like fins of the mermaid. Beautiful inspired princess mermaid fancy dress ariel costume for toddler and kid girls. Lined bodice with v shaped panel bounded by glittering sequins and with a removable brooch as extra decoration.

2 set of accessories for your choice to complete the look! Hair Wig Set / 5 Pieces Accessories Set with crown, gloves, wand, necklace and earrings Color: Hot Pink / Purple. Pullover with half elastic waistband for easy dressing, no zip. Printed shimmery fish scales on stretchable skirt with wide fishtail hem layers. Ankle length, avoid tripping. Made of lightweight polyester fabric for comfortable fit. Please refer to our size chart for more accurate measurements.
BrandLito Angels
ManufacturerLito Angels
Height10 cm (3.94 Inches)
Length10 cm (3.94 Inches)
Width10 cm (3.94 Inches)
Part NumberGirls Costume
ModelMädchen Kostüme

5. Wicked Costumes

Girls Mystical Mermaid Fancy Dress Costume, Large 8-10 Years

Wicked Costumes - Costume includes Dress & Bracelet. Small 3-4 years, medium 5-7 years, large 8-10 years, X-Large 11-13 years. Girls mystical Mermaid Costume. Safety: all of our costumes are exclusively manufactured for Wicked Costumes in compliance with, and tested to, EN71 standards and are fully CE labelled.
BrandWicked Costumes
Manufacturerwicked costumes
Height2.59 cm (1.02 Inches)
Length35.79 cm (14.09 Inches)
Weight0.07 kg (0.16 Pounds)
Width26.39 cm (10.39 Inches)
Part NumberEG-3573L

6. Febbabe

Febbabe Princess Mermaid Dress for Little Girls Halloween Birthday Fancy Party Dressing up Kids World Book Day Cosplay Outfit Carnival Costume with Accessories Blue Age 3-4 Years

Febbabe - Set includes: 1 mermaid dress and accessory set as shown in the main image. Please read the size chart carefully before purchasing. This glittering role play costume will make your girl shine in the crowd.

The exquisite design and detailing is stunning and unique, square neckline, organza ruffles at the waist and tail, featuring tulle ruffle fly sleeves, skirt with a glittering fish scale print and a wide fishtail hem for easy movement. Girls princess mermaid dress is made from a soft fabric that is comfortable and breathable to wear and skin friendly for children. Hand wash, then air dry. Fancy dress costume is perfect for carnivals, cosplay, pretend play, birthdays, musicals, Christmas, stage costumes, World Book Day, parties, theme parties, Halloween, festivals, costumes, gifts and more. Costume care: do not bleach.
Part NumberA01850-UK20-Blue-110(P008+P062)

7. Spooktacular Creations

Spooktacular Creations Girls Mermaid Princess Fancy Dress Up Costume Set with Red Wig and Headband Small

Spooktacular Creations - Super Durable. Super value pack for role play. Child safe: non-toxic. Perfect for halloween dress up parties, little mermaid role playing, Mermaid Girl Costume, ariel Dress, Little Mermaid Costume, Undersea Adventure Themed Parties, Halloween Costume Dress Up, Ariel Costuem, activity, Everyday Play and More!.

33 pieces total little mermaid costume, includes Sequin and Lurex Mermaid Dress, Foam Seashells Headband and Long Synthetic Red Hair Wig. Safety Test Approved. Deluxe ariel costume set for Girls. 100% polyester. Superior Quality. Size: small 5 – 7, medium 8 - 10 and Large 10 – 12. Meet us Toy Standard.
BrandSpooktacular Creations
ManufacturerJoyin Inc.
Height25.4 cm (10 Inches)
Length31.75 cm (12.5 Inches)
Width2.54 cm (1 Inches)
Part NumberSpooktacular Creations


Princess Costumes for Girls With Mermaid Headband Necklace Set, TOLOYE Mermaid Costume Kids, Kids Little Mermaid Costume for Girl Gift, Princess Dress for Party Bridesmaid Cosplay Pageant 120

TOLOYE - The recommended age is for reference only. Comfortable to wear. Mermaid dress is suitable for 3 to 8 children- this mermaid costume has 3 sizes, and you can choose one that suits you best. Perfect cosplay 8 pieces set- our complete mermaid costume set includes a BBB, a ring, a fairy wand, a mermaid tail headband, a mermaid tail necklace, a bracelet and a pair of ear clips.

Princess costumes fit for multiple scenes- the kids little mermaid costume has a sense of fashion and unique design. Mermaid costume with fish scales- sweet princess style. Our princess costumes set is the best gift for girls and a must-have for girls to dress up. This ccc is beautifully patterned with mermaid scales and adds a tulle design. Note: please check our size information carefully before ordering.

Best gift for girls- every girl has a princess dream. This princess costumes can meet your cosplay needs well. Our design philosophy is that every girl can be a mermaid princess. This mermaid dress is not only suitable for daily wear, but also for some special occasions, Christmas, photography, Halloween, such as wedding, mermaid themed party, etc. This princess dress up is very suitable for girls between the ages of 3 and 8.
Height2 cm (0.79 Inches)
Length7 cm (2.76 Inches)
Width7 cm (2.76 Inches)
Part Number1
Warrantywarranty for 6 months

9. AmzBarley

AmzBarley Girls Princess Mermaid Costume Dress up Kids Fish Tail Halloween Fancy Party Dress Cosplay Birthday Holiday Purple 3-4 Years 110

AmzBarley - Cutie ruffles on the shoulder straps. Lining material: cotton/polyester, Soft and comfy fabric for your little mermaid's skin. Stretchable and shimmery fish scales printed skirt with wide fishtail hem layers. Both the back and skirt are stretchy to accommodate most body sizes and a comfortable fit. Split short layers at waist looking like fins of the mermaid. Beautiful one-pieced mermaid costume is suitable for mermaid theme party, Halloween, Carnival, birthday gifts, World Book Day, etc.
Height10 cm (3.94 Inches)
Length10 cm (3.94 Inches)
Width10 cm (3.94 Inches)
Part Numberninja costum tacobear
ModelRobe de Sirène

10. Rubie's

Rubie's Official Deluxe Mermaid Costume Girls Medium

Rubie's - Rubie’s licensed product tested to all required European and UK standards, including EN71 & REACH. 882719. Includes dress. Colour: blue, Pinp. Us designed and sized product.
Height5.08 cm (2 Inches)
Length43.18 cm (17 Inches)
Weight0.27 kg (0.6 Pounds)
Width30.48 cm (12 Inches)
Part Number882719_M