Home » Celebrations » Birthday Parties » 20+ AMAZING Mermaid Birthday Cakes You Should See!

20+ AMAZING Mermaid Birthday Cakes You Should See!

This post and the photos within it may contain affiliate links. As an Amazon associate I earn from qualifying purchases. If you make a purchase through one or more of the links, I may receive a small commission at no extra cost to you.

Are you planning a Mermaid Birthday Party?! Mermaid party themes are SO popular, and are one of my most requested party ideas. If you’re planning a Mermaid Party for your child, you’ll most definitely need an awesome Mermaid Cake! I’ve found a ton of Mermaid Birthday Cakes that are guaranteed to impress your guests and are perfect inspiration for planning a Mermaid Birthday Party. And don’t worry, there are even some cake ideas that you can make yourself!

mermaid cake ideas

I’ve updated the post, and now there’s 20 different Mermaid Birthday Cakes to inspire your next baking project!

One of my most popular posts is my Mermaid Birthday Party Ideas posts, where I found some of my favorite ideas for planning a Mermaid party. My own daughter is begging for a Mermaid birthday this year, and I’m excited to plan her party! It’s the perfect summer birthday party theme!

When I plan a dessert table, the main element and centerpiece is definitely the birthday cake! I’m amazed by some of the INCREDIBLE mermaid cakes that people have made, and I will definitely be using some of these as inspiration for my daughter’s cake!

Mermaid cakes can definitely be beautiful and elaborate, but some of these cakes can be transformed into an incredible DIY Mermaid Cake!

DIY Mermaid Cake Supplies

Make your own mermaid cake with these awesome cake decorating kits from Amazon!

Related Post: ADORABLE Mermaid Birthday Party Outfit for Toddlers

Mermaid Cake Topper Easy DIY with Cricut
DIY Mermaid Cake with FREE Mermaid Cake Decorations SVG
Make your own Mermaid Cake for your next party with a store bought cake (this one is from Sam’s Club!) and a DIY Mermaid Cake Topper! And the Mermaid Tail is filled with GLITTER!
READ THIS POST

This Mermaid Cake is both gorgeous and perfect for a DIY – create an ombre design with buttercream icing and then add a few small decorations and even an Ariel toy if you’re having a Disney Little Mermaid Birthday Party!

Ariel-Inspired Mermaid Cake
“I was able to create an enchanting tablescape perfect for my Ariel loving princess. I wanted this party to give a nod to the famous under-the-sea princess (hence the “dinglehopper” and spoon detail) without screaming ARIEL everywhere”
READ THIS POST

I love the Gold Details on this STUNNING Mermaid Birthday Cake by Little Leah’s Kitchen!

Little Leah’s Kitchen
I love the Gold Details on this STUNNING Mermaid Birthday Cake by Little Leah’s Kitchen!
READ THIS POST

The addition of sprinkles and colorful buttercream swirls makes this cake really special – you can buy a Mermaid sprinkle mix and some plastic tails and you could use this cake as inspiration for your own cake!

Mermaid Cake by Sprinkle Shop
The addition of sprinkles and colorful buttercream swirls makes this cake really special – you can buy a Mermaid sprinkle mix and some plastic tails and you could use this cake as inspiration for your own cake!
READ THIS POST

Want to make a DIY Mermaid cake? You can achieve these looks with a simple mermaid cake fondant mold set from Amazon!

Mermaid Themed Cake Molds & Sprinkles

Small items like fondant shells, sprinkles, and acrylic bubbles add fun elements to any mermaid cake!

A simple fondant tail, gum balls, and pastel sprinkles would make this an easy DIY!

Shimmering Mermaid Birthday Cake
Colorful stripes make this cake perfect for a young girl, and I love the large pink Mermaid tail and gum paste clam shell.
READ THIS POST

How gorgeous is this pastel ombre cake?! I love how simple but stunning it is.

Ombré Mermaid Birthday Cake
How gorgeous is this pastel ombre cake?! I love how simple but stunning it is.
READ THIS POST

This Mermaid cake with buttercream icing is the PERFECT inspiration for a DIY cake. Take a few colors of icing and add sprinkles and a mermaid tail. Done!

Mermaid Birthday Cake for a 6th Birthday Party
“A mermaid birthday cake for a swimming party: every little girl’s birthday dream, judging from the popularity of mermaid parties lately.”
READ THIS POST

This is one of my favorite Mermaid birthday cakes I found. The seaweed and gold details are so pretty! My daughter would definitely like a cake like this one!

Mermaid Birthday Cake Ideas curated by Pineapple Paper Co. Photo Credit: Star Bird Bakehouse
Magical Mermaid Cake by Starbird Bakehouse
This is one of my favorite Mermaid birthday cakes I found. The seaweed and gold details are so pretty! My daughter would definitely like a cake like this one!
READ THIS POST

This cake is surprisingly a DIY masterpiece! Just like a barbie cake from our childhood, you can use a doll cake mold to make a mermaid tail!

Wilton Princess Baking Pan Set to Make a Mermaid Birthday Cake
You can even buy a cake pan at Walmart.com to make your own Mermaid Birthday Cake – how adorable is this?! (Get the link to shop this pan below!)
CLICK TO SHOP

More Mermaid Cake Pans

Create your own mermaid cake with these cake pans available on Amazon!

Unicorns AND Mermaids? How fun is this rainbow Mermaid Birthday Cake?! My youngest daughter would be obsessed with it.

Magically Fun Rainbow Unicorn and Mermaid Birthday Cake!
“This mermaid birthday cake has to easily be one of the craziest fun cakes we’ve been asked to create so far. The inspiration behind this was little Emily’s love for a My Little Pony movie about unicorn mermaids (seriously… why didn’t this exist when we were 5?!?).”
READ THIS POST

I love the simple DIY buttercream frosting details on this adorable Mermaid cake!

Mermaid Oreo Funfetti Birthday Cake
“Every year I make myself a birthday cake (cue last year’s peanut butter and jelly cake and 2017’s chocolate cake) and despite some big projects that I have been working on, I still managed to make an over-the-top…”
READ THIS POST

What tween girl wouldn’t love this tie-dye mermaid cake for her birthday!?

Mermaid Cake: White Cake with Whipped Buttercream
“This under the sea themed cake starts with a classic white cake, topped with fluffy whipped buttercream and some white chocolate seashells. It’s sure to bring happiness, color and great pictures to any party or get together…”
READ THIS POST

LATEST POSTS:

Make a DIY cake topper and add bright blue frosting to the outside of a layered cake, and you’re done!

Mermaid Tail Cake Topper: DIY Birthday Cake Topper Tutorial
Mermaid Tail Cake Topper: DIY Birthday Cake Topper Tutorial
Decorate a simple cake with this FREE DIY Mermaid Birthday Cake Topper Tutorial from Abbi Kirsten Collections!
READ THIS POST

This is an awesome mermaid sheet cake! You could even DIY it with a sheet cake from Costco or Sam’s Club!

9 mermaid birthday cake
Easy Mermaid Cake for a Mermaid Birthday Party – Merriment Design
“Make this DIY mermaid cake with scales and tails, no special cake pan needed! This easy mermaid cake is shaped into a number 9 cake with cute mermaid tail.”
READ THIS POST

Small mermaid toys always work well on cakes! No cake stand needed for this one, either!

Diy Little Mermaid Cake (no piping skills required!)
“DIY Little Mermaid Cake – no piping skills required! Ariel cake tutorial using a pre-frosted cake from Costco or bakery.”
READ THIS POST

Buttercream details are my favorite! And they’re easier than you think! You just need a variety of icing tips.

Mermaid Layer Cake – Love and Confections
“No mermaid party is complete without a Mermaid Layer Cake. This moist vanilla cake with vanilla almond buttercream is sure to be the highlight of any Summer dessert table. Colorful frosting, sprinkles and candy melt mermaid tails give the perfect mermaid vibe!”
READ THIS POST

Instead of using fondant in silicon molds, you can use chocolate to make mermaid tails and shells!

How to make a Mermaid Cake - Courtney’s Sweets
How to make a Mermaid Cake – Courtney’s Sweets
“Learn how to make a Mermaid Cake for your Mermaid Birthday Party! Make chocolate shells, chocolate mermaid tails, and seafoam whipped cream.”
READ THIS POST

Mermaid scales are easy to make with a large round piping tip and a spoon to flatten dollops of icing.

Mermaid Cake - Preppy Kitchen
Mermaid Cake – Preppy Kitchen
“This delicious mermaid cake has super-moist vanilla layers wrapped in decadent white chocolate buttercream. The scales are so easy to make but beautiful!”
READ THIS POST

Another trick is to use fondant circles!

DIY Mermaid Birthday Party Decor and Mermaid Birthday Cake Tutorial
“DIY mermaid birthday party and decorating ideas. DIY under the sea birthday party and decorating ideas. DIY mermaid birthday cake tutorial, mermaid tail cake.”
READ THIS POST

I never thought I’d like so much dark icing on a mermaid cake, but this looks really cool!

Mermaid Cake - Intensive Cake Unit
Mermaid Cake – Intensive Cake Unit
Get the tutorial AND the recipes for this unique Mermaid cake idea at the link below!
READ THIS POST

Below is the tutorial for this simple mermaid cake decoration!

How to Make a Mermaid Cake ⋆ Sugar, Spice and Glitter
How to make a mermaid cake tutorial – perfect for an easy smash cake or for a little mermaid birthday party
READ THIS POST

Pin to Find these Mermaid Birthday Cakes later:

mermaid cake ideas
mermaid cake ideas
Mermaid Birthday Cake Ideas curated by Pineapple Paper Co.

Similar Posts

about charynn

ABOUT CHARYNN

Hi, y’all! I’m Charynn, the owner and designer of Pineapple Paper Co. I’m a mom of four kids (two girls and two boys) living in Pittsburgh. I love hand lettering, anything southern, cocktails, and of course, pineapples! I am excited to share my SVG files, printables, and craft projects with you! The pineapple is a symbol of hospitality, and I welcome y’all to my little corner of the internet. Read more…

Leave a Reply

Your email address will not be published. Required fields are marked *