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8 Magical Ideas for the Ultimate Mermaid Party

Mermaids are one of the biggest party themes of the summer. Here’s how to host the best mermaid party ever by transforming your space into a magical iridescent underwater world.

Following the release of the successful The Little Mermaid movie featuring Halle Bailey in the summer of 2023, the figure of the mermaid remains a favoured party go-to for kids. Indeed, here at Meri Meri, the mermaid is one of our most popular party themes. And no wonder – there’s something mystical and otherworldly about the beautiful sea maidens.

A themed party gives you the opportunity to indulge in some underwater-themed creativity, and we've come up with several ways to create the best mermaid birthday party. Enjoy!


1. Seas The Day!

Once you’ve set the time and date, it’s time to send out the invitations. Get creative and encourage your kids to help make them (see our fantastic mermaid craft for inspiration). Easier still, opt for a beautiful Meri Meri x Paperless Post digital invitations – stylish yet mindful of the environment, these invitations are a customisable and oh-so-chic alternative to traditional paper invites!

A pastel mermaid party set, including fringed garlands and cups, plates and napkins with mermaid illustrations, and cake toppers.

2. Mermaid For Each Other!

To make party-planning a simple affair, go for a mermaid party in a box. This one includes tableware featuring swimming mermaids, delightful cake toppers, and a shimmering garland with tissue paper fringing and mermaid and seahorse characters. Suitable for 8 guests.


How to create a mesmerizing mermaid party table?

‘Choose a tablecloth that represents the sea, in blues or greens. Sprinkle sequins onto the tabletop to give some sparkle. Use glass vases as fish tank centerpieces. Place pebbles and shell beach finds in the bottom, cut out thin fish from carrots peelings and use kale and broccoli as seaweed or buy several of the mermaid birthday cards and have them running through the table as a central decoration.’

Sania Pell, Interiors Stylist

Pearl-colored seashell plates, napkins, and gift bags are paired with seahorse napkins and mermaid-inspired plates and napkins.

3. Shell-abrate Good Times!

Perfect for toasting the birthday child in style, these sea-inspired fringed cups match perfectly with the Iridescent Partyware range featuring clam shell plates and napkins. Pair with Sea Foam Plates and Periwinkle Napkins for a wow-factor tablescape that is sure to impress. Mermazing!

From left to right; a table laid with our Under The Sea range, including turtle and octopus napkins and shark cups, a mermaid piñata, a shark cup, and glittering blue tinsel garland.

4. Fin-tastic Mermaid Party Decor

From shimmering tinsel garlands to mermaid piñatas, we have all the ocean-themed decorations to ensure your party goes with a splash! Create a picture-perfect backdrop with our Pastel Balloon & Streamers Garland or eye-catching Under The Sea Garland.

For a younger or more unisex take on the mermaid theme, you could always add in decorations from our popular under the sea room range, featuring incredible sea creature designs complete with shimmering details.



How to create wow-factor?

‘Hang streamers and fringing from the tops of doors to create an underwater feeling as you enter the celebration room. Have lots of balloons blown up on the floor to represent bubbles.’

Sania Pell, Interiors Stylist

A birthday cake topped with illustrated mermaid characters in varying colors, paired with cupcakes topped with the smaller cupcake topper versions of the mermaids and seahorses.

5. Create A Show-Stopping Mermaid Cake

Whether you make it yourself (see this recipe for the ultimate buttercream frosting) or order it, a mermaid-themed cake is the centerpiece for the party table. Either way, our themed party toppers will add instant charm to any cake from the simplest Angel Food Cake to the most elaborate tiered delight.

A GIF featuring images of illustrated mermaid stickers, mermaid tattoos, a mermaid piñata, and pearl-colored seashell party bag.

6. Get A Mermaid-Ready Favours Bag

There’s a whole lot of watery-themed fun to be had when filling the favour bags. Add in mermaid-themed temporary tattoos, stickers and mini pinata favours for extra fun.



How to bring extra drama to the mermaid theme?

‘Stick fringed mermaid garlands and shell plates to walls to set the scene, and there could even be a separate decorated area for photos and tattoos, with mermaid costumes, crowns, and capes supplied to dress up and be photographed in. Tie helium balloons to the back of some chairs to create height and drama.’

Sania Pell, Interiors Stylist

A girl wearing a mermaid costume, including a purple top and glittering sequin mermaid tail holds a mermaid doll, and stand beneath a blue balloon arch in the next picture.

7. Shimmer Time!

Transform your little one into a gorgeous sea maiden. Featuring a crop top with iridescent sequins and a wrap with tail detail, our heirloom-quality costume will give them hours of joy after the party too. Give them a mermaid makeover, using child-friendly makeup in colours of blue, purple, and pink and pair with our Enamel Shell Hair Slides to create a fin-tastic mermaid look.


8. Mermaid Party Activities

Don’t forget the party games! Let your little ones have a go at our Mermaid Colouring Pages which can be used as posters once they’re coloured in or set up a round of mermaid-inspired pass the parcel – place little gifts between the layers of colourful wrapping (our Mermaid Temporary Tattoos make for great mini presents!) and accompany it with a The Little Mermaid playlist.


Craft A Mermaid


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