22 Fun Mermaid-Themed Party Ideas - Invitations, Decorations & Activities (2024)

These fun mermaid-themed party ideas are perfect for your next magical event under the sea! This article offers ideas for mermaid party invitations, decorations, party games & more.

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How to throw a fabulous mermaid party!

Who’s ready for a fun party under the sea? Get ready to throw an awe-inspiring fairytale mermaid party for your next event! You’ll love these magical mermaid party ideas for invitations, decorations, and activities.

You don’t have to be a mermaid to enjoy a mermaid-themed party! We love throwing themed parties around here (check out our latest party themes here) and these ideas for a mermaid party are no exception.

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A mermaid-themed party under the sea

Mermaid parties have become very popular as a theme. Mermaid lovers can celebrate so many different occasions with ocean-inspired decorations and other themed mermaid foods, favors, and more! You can use these ideas for a mermaid birthday party, a mermaid pool party, or event a mermaid-themed bridal shower.

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22 Fun Mermaid-Themed Party Ideas – Invitations, Decorations & Activities

We have rounded up several ideas to help you plan your next mermaid party. This would be so much fun to have by a pool or at the beach! Check out some fun Mermaid party ideas, from invitations to decorations to activities.

1. Free printable mermaid party invitations

These mermaid party invitations are free to print. They are 5×7 inches and you can use this mermaid party invitation template to add your own information about your event.

We created a free mermaid party invitations template that you can print as many times as you need for your mermaid-themed party! Made with purple, teal blue, green, and a hint of pink colors, it matches most mermaid party decorations and favors.

Our “You’re Invited to a Mermaid Party” invitation is generic in language, so it can be used for a pool party, a baby shower, or even a mermaid theme birthday invitation!

Printable instructions for your mermaid theme invitation

To print out this mermaid party invitation, download the printable mermaid invitation file here and save it to your computer. Follow the printing instructions here on our unicorn party invitations post (scroll about halfway down the page).

More mermaid invitations for your party22 Fun Mermaid-Themed Party Ideas - Invitations, Decorations & Activities (5)

Mermaid party decorations

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2. Mermaid balloon garland arch kit – This blue and purple mermaid balloon tail is super cute! You can set this up as a photo backdrop or use it for the dessert table at your next mermaid themed birthday party.

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3. Cute starfish cups table decor – Make these blue starfish cups that are perfect for your mermaid DIY party! Get the tutorial from Meaningful Mama.

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4. Hanging mermaid party garland – This pretty silver iridescent garland by pinkblume makes a beautiful backdrop for any mermaid party decoration.

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5. DIY jellyfish craft decoration – This cute jellyfish craft by The Suburban Mom is a decoration item for your mermaid parties!

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6. Mermaid party cupcake tower – This mermaid cupcake stand is easy to put together and looks super cute on any dessert table! If you want to make your own cupcake stand, we have a DIY Cupcake Stand tutorial that can be made to match any party theme.

Mermaid themed food & desserts

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7. Sweet mermaid party food dip – This mermaid dip recipe by About A Mom uses cream cheese & pretty sprinkles and candies to make a fun, mermaid-style treat!

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8. Mermaid Rice Krispie Treats– If you are looking for mermaid party food ideas, try these mermaid rice krispy treats from Finding Zest. These snacks will make your mermaid dessert party table pop for sure!

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9. Ocean water mermaid punch – Wow your guests with this blue “ocean water” drink. It is the perfect mermaid party punch for everyone! Get the recipe from We Are the Joneses.

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10. Clamshell mermaid cookiesMom Dot created these tasty-looking clamshell cookies with buttercream frosting that look so divine. How cute is that pearl inside? We love it!

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11. Mermaid tail speckled cupcakes – These cute cupcakes made by Made In A Pinch feature a mermaid tail topper on each cupcake for a super cute mermaid dessert idea.

Fun games & mermaid activities

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12. Make mermaid slime – This mermaid slime recipe from The Best Ideas for Kids is a fun party activity for kids to make at your next mermaid themed party.

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13. Mermaid bean bag toss game – This fun mermaid party game is a favorite for kids and ready to hang up and play out of the box! Click here to check it out.

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14. Little Mermaid Printable Coloring Sheets – Print out these Little Mermaid coloring pages and activity sheets for the kids to color at the party.

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15. Mermaid party bingo game – Bingo is always a fun game to play at parties. This mermaid bingo game is great to play at your next event – make sure you have markers (small seashells would be cute) and prizes for the winners! Print it for free at The Artisan Life here.

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16. Under the sea sand art activity – Have a fun sand art station at your next mermaid theme party. This ocean party activity by Celebrate Everyday with Me is such a cute idea! This is one of our favorite mermaid party activities.

Mermaid party favors

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17. DIY Mermaid party favor jars – These mermaid party favor jars are dressed up like Ariel from The Little Mermaid and look so adorable! Learn how to make them here from Finding Zest.

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18. Ocean gold fish marshmallow pops – How cute are these fish marshmallow pops from Kara’s Party Ideas?! Simply grab some large marshmallows, paper straws, and a few decorative items to make these for your under the sea themed party. Wrap them up in clear cellophane bags and you’ve got yourself a DIY party favor!

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19. DIY mermaid party favor boxes – Buy these mermaid tail favor boxes, easily assemble them, and add your favorite candies and treats!

Also, check out these cute mermaid tail boxes. They are adorable, too!

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20. DIY mermaid crowns – These crowns by Sugar, Spice & Glitter are great party favors to give out and can even double as an activity for the kids to make their own mermaid crowns!

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21. DIY mermaid headbands craft – This DIY mermaid headbands kit from Daover is cute for the kids to make their own mermaid party favor hairbands and doubles as a fun party activity!

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22. Under the Sea party favor bags – These cute party favors by Young House Love feature jelly beans and goldfish for a fun DIY mermaid themed party favor idea!

More mermaid party supplies you will need:

Now that you have your mermaid decor, games & food all set, don’t forget that you will still need plates, cups, napkins, tablecloths, and more supplies for your under the sea themed mermaid party.

Have an amazing mermaid theme party!

We hope you love these mermaid birthday party ideas, which you can also use for a mermaid-themed baby shower, pool party, or any other themed event.

More awesome party themes and ideas

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22 Fun Mermaid-Themed Party Ideas - Invitations, Decorations & Activities (2024)
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