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Mermaid Costumes for Christmas: 4 Gift Ideas for Girls

Summary

Looking for a Christmas present for a girl who loves mermaids? A colourful mermaid costume could be the perfect addition to her dressing-up box. Whether she’s dreaming of a sparkling crown, a flowing mermaid dress or a whole new character to play, there are plenty of ways to make Christmas morning special.

We’ve chosen four mermaid fancy dress outfits for girls from our mermaid costume collection. Each comes with different accessories, so you can find something that suits your child’s personality, favourite games and age.

A girl’s mermaid costume under the Christmas tree

Mermaid dress-up outfits for girls: 4 Christmas gift ideas

From princess-style dresses with jewellery to simpler outfits with matching headbands, these four costumes offer something different. Take a look at the selection below, then read on to discover which one could suit your child best.

Which mermaid fancy dress costume should you choose?

1. A mermaid princess costume with crown and jewellery

For girls who love dressing up with all the extras, the Ariel Little Mermaid Costume offers plenty of accessories to explore. The set includes a mermaid headband, crown, gloves, wand, necklace, bracelet and earrings. Your child can mix and match them to create different looks, whether she’s pretending to attend an underwater ball or putting on a little show at home. It’s a lovely choice for children who enjoy imaginative play and spending time getting their outfits just right. For younger children, make sure the jewellery and smaller accessories are suitable for their age.

2. A simple girls’ mermaid costume with a matching headband

Some children are happiest with a dress they can slip into whenever they feel like playing. They don’t necessarily want lots of jewellery, a wig or a collection of accessories. The girls’ mermaid outfit with headband includes the costume and a matching headband, keeping things simple. With fewer separate pieces to look after, it’s a practical option for everyday dress-up games. It could also be a good Christmas present for a child who already has plenty of crowns and accessories in her dressing-up box.

3. A mermaid costume with wig and handbag

Does your child love inventing characters and trying completely different looks? Then a wig might be just as exciting as the costume itself. The mermaid costume with wig and handbag includes a crown, wig and handbag alongside the outfit. The wig gives your child a different hairstyle for her make-believe adventures, while the handbag can be used for other dressing-up games too. It’s worth thinking about whether your child enjoys wearing wigs. Some love the transformation, while others prefer something lighter on their head.

4. A Little Mermaid dress with a flower crown

Not every little mermaid needs a traditional princess crown. For girls who prefer flowers and fairy-tale details, the mermaid costume with flower crown offers a different style. The included flower crown gives the outfit a softer look and can be worn again for a birthday party or another fancy dress occasion. This could be a good choice for a child who loves floral accessories and dressing up as characters from her own imaginary underwater world.
A child wearing a mermaid costume near the Christmas tree

How to choose the right size for a girls’ mermaid costume

A mermaid dress might look lovely in photographs, but getting the size right is what matters when your child tries it on at Christmas.

The four featured costumes currently share the same size guide, covering ages 3–4 through to 9–10 years. Here are some of the measurements listed:

  • 3–4 years: dress length 90 cm, listed bust measurement 60 cm.
  • 4–5 years: dress length 94 cm, bust 62 cm.
  • 5–6 years: dress length 99 cm, bust 64 cm.
  • 6–7 years: dress length 102 cm, bust 66 cm.
  • 7–8 years: dress length 104 cm, bust 68 cm.
  • 8–9 years: dress length 106 cm, bust 70 cm.
  • 9–10 years: dress length 108 cm, bust 72 cm.

These are the measurements provided in the product guides, rather than standard UK children’s body measurements. Comparing them with a dress your child already owns is often more useful than relying on age alone.

Pay particular attention to the length of the skirt. A dress that trails on the floor may make it difficult to walk, dance or play comfortably.

Buying a mermaid costume for Christmas: what matters?

Think about how your child likes to dress up

A girl who loves jewellery, crowns and pretend royal celebrations might enjoy a costume with plenty of accessories. Another child might prefer a simple mermaid dress that she can wear without any extra fuss.

Consider the games she enjoys and the outfits she already reaches for at home. The right Christmas gift is one that matches her interests, not simply the one with the most accessories.

Order in good time for Christmas

If you’d like the costume ready for Christmas Day, check the current delivery information before ordering and allow extra time during the busy festive season.

Delivery estimates aren’t guarantees unless a specific arrival date has been expressly confirmed.

A Christmas present she can enjoy all year round

One of the best things about a mermaid fancy dress outfit is that it doesn’t have to be packed away once Christmas is over.

Your child might wear it for a birthday party, a school dress-up day or an afternoon of make-believe at home. The accessories can become part of other games too: a flower crown for a fairy costume, or a handbag for a pretend shopping trip.

That’s why choosing a dress your child genuinely likes can be more rewarding than buying something just because it looks impressive under the Christmas tree.

Mermaid fancy dress or a swimming mermaid tail?

It’s important to know the difference between a mermaid costume for dressing up and a tail designed specifically for swimming.

The outfits featured here are intended for fancy dress, parties and imaginative play. They should not be worn for swimming unless the manufacturer explicitly confirms they’re suitable for use in water.

If your child is interested in mermaid swimming, you can explore our separate mermaid tail collection. Swimming tails and monofins require competent swimming skills, suitable supervision and careful attention to the manufacturer’s safety instructions. They are not swimming aids for beginners.

Which mermaid costume makes the best Christmas gift?

It depends on what your child enjoys most. For girls who love crowns and jewellery, the princess-style set offers plenty of ways to dress up. The costume with a matching headband keeps things simple, while the outfit with a wig and handbag is suited to children who love creating new characters. If floral accessories are more her style, the dress with a flower crown is another option. Whatever you choose, make sure it suits your child’s interests and measurements. A costume she feels happy wearing is one she’s more likely to enjoy long after Christmas. Still looking for ideas? Browse our full collection of mermaid fancy dress costumes for girls to discover more outfits.

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Welcome to the world of mermaids!
A online shop dedicated to the magical theme of Mermaids.
Whether you’re a fan of mermaids or not, you’ll find something to suit you!
It’s time to dress up as a mermaid with a mermaid tail.

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