When it comes to throwing a magical birthday party, the best mermaid birthday decorations can transform an ordinary celebration into an underwater wonderland. With vibrant colors, whimsical designs, and thematic elements, mermaid-themed parties capture the imagination of both children and adults alike. If you’re looking for the perfect decorations to make your event unforgettable, Amazon has an amazing selection in 2025.
Top 10 Mermaid Birthday Decorations on Amazon
Here’s a detailed overview of the top ten mermaid birthday decoration products available on Amazon in 2025.
1. Mermaid Birthday Decorations Set
The first product on our list is a comprehensive Mermaid Birthday Decorations Set which includes banners, tablecloths, and balloons. This set is perfect for a theme party and can easily accommodate a gathering of 10-20 people.
The vibrant color scheme features teal, pink, and gold, creating a magical atmosphere. The included banners are made from high-quality materials that are reusable. The balloons are easy to inflate and come in various shapes, including mermaids and seashells, providing an eye-catching display.
This set not only covers the essentials but adds fun to the atmosphere, inviting everyone into a whimsical world.
- 🐬 [Luxurious Mermaid Birthday Decorations]: Include 1pack mermaid theme birthday banner, 1pcs tassel garland, 1pcs bubble garland, 2pcs jellyfish paper lanterns, 18pcs latex balloons (6 Purple, 6 Confetti, 6 Blue), 4pcs foil balloons, 1pcs cake topper, 12pcs cupcakes topper. This is a complete and rich mermaid-themed decoration, which will help your little girls have an unforgettable birthday.
- 🐳 [Enjoy Your DIY Time]: The bubble garland is assembled, and the "happy birthday" banner is easy to assemble, with no more Misspelled. Balloons will come in packs. Inflate slowly with the tube and decorate them with glue dots and ribbon included. The paper lantern and tassels were shipped flat so you need to DIY. You can prepare for the party ahead. Just enjoy the happy family craft Time with no hassle!
- 🐋 [Multi-purpose Use]: With our MERMAID THEMED BIRTHDAY set, throw the best mermaid themed birthday, mermaid bachelorette party, ocean themed party or create a mermaid photo booth or backdrop to complement your under the sea decorations. Fantasy World of Mermaid Make Her Party Special and Distinctive. Help you light up the beautiful night and get a big hit!
- 🐳 [High Quality]: Our mermaid birthday decorations are made from high-quality material. All balloons from this set are non-toxic, strong, and long-lasting. The tassels garland and paper lantern is made of high quality eco-friendly paper. Friendly to pregnant women and children. The mermaid birthday decorations kit can be hung on the ceiling, table, wall, and everywhere you want!
- 🐬 [Buy with Confidence]: We are very confident with the quality of our mermaid birthday supplies. Once your birthday decorations pack arrives, please check it. If anything is missing, we will replace it ASAP before your event.
2. Mermaid Tail Foil Balloons
Foil balloons are a must-have for any birthday celebration. The Mermaid Tail Foil Balloons come in a pack of five, each measuring about 34 inches, making them a statement piece at your party.
These balloons reflect light beautifully, adding a sparkling effect that enhances the underwater theme. They are incredibly easy to inflate and are designed to last throughout your entire celebration.
Whether used as part of a backdrop or scattered around the party area, these balloons will capture the attention of both children and adults alike.
- package: 10 pieces 24inch Color Mermaid Tail balloons (purple,blue,pink,gold,Dark blue)
- Material: Made of aluminum mylar foil material
- suitable: the mermaid theme birthday decorations are suitable for various parties, such as shower party, birthday, wedding, celebration, tropical summer party, Hawaii, engagement parties, anniversary, sea themed party
- Please do not overfill the metallic mylar balloons，Please avoid sunburn,overheat,pointed object and excessive friction
3. Mermaid Theme Tableware Set
Complete the dining experience with this Mermaid Theme Tableware Set, which includes plates, cups, and napkins patterned with colorful mermaids and ocean motifs.
This set is perfect for serving cake, snacks, and beverages, making it easy to maintain a cohesive theme. The plates are sturdy and can hold various types of dishes, while the cups are perfect for both hot and cold drinks.
With its disposable design, cleanup is a breeze, allowing you to enjoy the party without the hassle of washing dishes.
- Complete Mermaid Party Supplies Set: This Mermaid Party Set includes 48 x 9-inch paper plates, 24 x 9 oz paper cups, 24 x mermaid-themed napkins, 24 sets of silver-colored cutlery, and 1 large mermaid tail sequin tablecloth (approx. 28 x 275 cm). With a total of 169 pieces, this kit provides everything you need to host a stunning mermaid-themed celebration. Perfect for birthdays, pool parties, baby showers, and other aquatic events that will wow your guests!
- Magical Mermaid Design for Your Party: The mermaid-themed paper plates feature holographic laser technology, while the tablecloth shimmers in the light, creating a dreamy, iridescent effect. The utensils and napkins reflect beautiful mermaid colors, sparkling under different lighting. The shell-shaped plates look elegant and refined, while the napkins and cups are beautifully printed with intricate designs, adding a touch of magic to your party table. These eye-catching decorations are perfect f
- Safe and Reliable Materials: Made from high-quality, food-safe materials, this mermaid-themed party set is both durable and safe for direct food contact. The tablecloth is made from premium sequined polyester and is easy to clean, while the paper plates, cups, and napkins are designed for easy disposal after use. The sparkling mermaid scales on the tablecloth are securely sewn, preventing any sequins from falling off, ensuring your party setup remains flawless.
- Convenient and Time-Saving: These disposable mermaid party supplies make cleanup a breeze. Once the party is over, simply dispose of the plates, cups, and napkins to save time and effort. No need to wash dishes—just enjoy the party and spend more time with your guests. Whether you’re hosting a small family gathering or a large birthday bash, this set is designed to make your event more enjoyable and hassle-free, so you can focus on creating memories.
- Perfect for Mermaid-Themed Events: This mermaid party set is perfect for a wide variety of occasions, including mermaid-themed birthdays, pool parties, baby showers, or underwater-themed events. The vibrant colors and shimmering design will transport your guests to a magical underwater world, making your celebration unforgettable. Whether you’re planning a casual get-together or an extravagant birthday bash, this set will help you create an enchanting atmosphere that everyone will love.
4. Under the Sea Backdrop
For a stunning backdrop, the Under the Sea Backdrop is ideal for your mermaid-themed party. Measuring 6×4 feet, it adds depth and dimension to your space.
This backdrop features an enchanting ocean floor scene with colorful fishes and shimmering bubbles. It’s printed on high-quality vinyl, ensuring it’s durable enough to withstand rips and tears during the festivities.
A backdrop like this can serve as a fantastic photo booth, making memories even more special as guests pose with their favorite mermaid accessories.
- Size: 7x5 ft (82x60 inch), 210x150 cm, suit for your under the sea party, photography background, party decorations, portrait photography, festival holiday decor; can be customized with any creativity
- Cotton Fabric: Made from 100% cotton; light weight and durable; wrinkless and softable; washable and reuseable; Can be stored for a long time without natural damage; can be ironed with steam iron, low temperature; Material is not easy to tear; You can use nails or clips stick on the wall or backdrop stand; Cotton material only need hang it for two days or iron can remove its wrinkles, which can apper best effect
- Package: Only 1 pcs sea baby shower backdrop; send by folded; without backdrop stand, clips, grommets, pocket; Mocsicka box packaging, simple and good-looking; We're excited to assist you with all your birthday baby shower party supplies, including this fantastic photo backdrop that will add a special touch to your celebration! Let us help you create the perfect atmosphere for unforgettable memories.
- Color: The under the sea birthday banner is printed with vivid color and high-resolutions digital printers, realistic scene and eye-catching product details; Hang it against the wall for best scene; It's fashionable, clear printed, and fashionable enough to keep your party stylish; The Colors are noticeable and will make your decorations for birthday party or baby shower party better
- Usage: Suit for your under the sea baby shower party, photography background, party decorations, portrait photography, festival holiday decor; can be customized with any size; Easy to use depen on backdrop stands; Transform your gathering into a memorable occasion by creating the perfect display that captures the essence of celebration. Let every detail contribute to an atmosphere filled with joy and happiness, ensuring that your party is an unforgettable experience for everyone involved
5. Mermaid Party Hat Set
Add an extra layer of fun with the Mermaid Party Hat Set that includes 10 unique hats featuring charming mermaid designs.
These hats are perfect for creating a festive atmosphere and getting everyone into the spirit of the celebration. Each hat is about 7 inches tall and can comfortably fit both children and adults.
They are made from sturdy cardstock, ensuring durability throughout the party, making them a great addition to your decor.
- Complete Set Include ---Celebrate your mermaid birthday or mermaid theme party in style with Konsait mermaid paper crown set! This set includes 12pcs of paper hat and 12 strings, featuring various mermaid designs, meets all your mermaid party needs.
- Easy Setup - Setting up this paper mermaid party hats kit is super easy! All parts are included, and you only need to threads strings the mermaid cutouts. Each hat measures 4.2*10 inch, one size for all.
- Mermaid Party Favors - These mermaid crowns have classic patterns and designs that are perfect for any mermaid theme celebrations. Use them as party photo booth props or mix-and-match signs for any related occasion. Capture the fun and excitement of your special day with this must-have set of mermaid party hats.
- Mermaid Theme Design - Each of these mermaid party hat is delicately designed with mermaid theme and under the sea creatures. The stylish mermaid design makes these mermaid crown a hit with guests, ensuring that people will remember the happy time they spent celebrating with you.
- High-Quality Product - These mermaid hats are made of cardboard material with excellent workmanship and exquisite design. They're not easy to break and feature nice design, durable and reusable, this set is perfect for any of mermaid celebrations.
6. Mermaid Cake Topper
No mermaid birthday celebration is complete without a splendid cake to showcase, and the Mermaid Cake Topper is an excellent choice.
This intricately designed topper features a beautiful mermaid alongside colorful underwater friends. Made from food-safe materials, it’s safe for use on cakes, cupcakes, or any sweet treat you have planned.
The topper is sturdy enough to reuse for future celebrations, giving you value for your money while minimizing waste.
- 6 mermaid tails, 10 seaweed,6 bubbles, 2 shells,2 starfish 3 golden ginkgo leaves,2 plam leaves,1 happy birthday sign
- Mermaid Cake Topper Big Mermaid Tails Seaweed Bubbles Shells and Golden Ginkgo Leaves Cake Set for Mermaid Under the sea Cake Decor
7. Mermaid Photo Booth Props
Capture the fun with the Mermaid Photo Booth Props set, which includes 20 different items like sea creatures, mermaid tails, and golden treasures.
These props are made from high-quality, vibrant cardstock, easily attached to sticks for easy handling. They are perfect for creating memorable photos with your guests, adding a layer of interaction to your party.
Kids and adults alike will enjoy getting into character, making this one accessory you will definitely want for your mermaid-themed birthday bash.
- 🌻🌻You will get one set of 22 pieces Design-sensitive Mermaid themed birthday photo booth props.
- 🌻🌻The photo booth props made of high quality thick paper and food grade sticks, no odor.
- 🌻🌻A good choice for birthday themed party favor or gifts, adding an extra touch to your party.
- 🌻🌻No stress, all smiles! We provide everything you need for easy setup – sticks, stickers, and a straw for hassle-free inflation. Spend less time assembling and more time celebrating.
- 🌻🌻After you receive the package, if the package is damaged, you can contact us at any time.
8. Mermaid Centerpiece Decor
The Mermaid Centerpiece Decor kit includes various items like mermaid figurines and seashells that can be arranged as stunning table centerpieces.
This decor kit adds an elegant touch to your party tables. The pieces are made from lightweight materials, making them easy to arrange and set up before the guests arrive.
Moreover, they can also serve as delightful keepsakes after the party ends, allowing you to cherish those special memories in your home.
- Package includes: You will get mermaid party honeycomb centerpiece set with 12pcs of little mermaid party honeycomb centerpiece cards and 20pcs of honeycomb centerpiece bases in baby blue and light purple, enough quantity to meet your mermaid birthday party decoration needs.
- Hit for birthday party decor: Our ocean mermaid honeycomb centerpiece table toppers are exquisitely designed featuring vibrant and vivid mermaid-themed patterns, such as jellyfish, seahorse, shell, starfish, and more that fit for a mermaid birthday party. These under-the-sea mermaid centerpieces are eye-catching and attractive, adding a touch of personality to your birthday party decor.
- Premium material: The mermaid birthday table decorations are made of high-quality cardboard, ensuring safety, durability, no smell, and resistance to breakage, fading, or deformation.The patterns are bright and clear. Our little mermaid under the sea centerpieces are lasting decor for your party.
- Easy to apply: First, peel off the sticker of the honeycomb ball.Second, stick the honeycomb ball to the fixed area of the surfing beach card.Third, unfold and rotate the honeycomb ball by 180 degrees, and then stick it to the other side.Finally, place it on your table, and you will get a fantastic mermaid birthday table centerpiece decoration.
- Wide application: Our under the sea mermaid party favors have a wide range of uses.They can be used for birthday parties for boys and girls, baby showers, under the sea birthday parties, ocean parties, anniversary and more.You can use them to decorate your tables, bedrooms, living rooms, leaving a lasting impression.
9. Bubble Machines
Elevate the experience with a Bubble Machine, perfect for creating an enchanting underwater atmosphere.
This bubble machine is compact and easy to set up, providing hours of bubble fun. The machine is easy to refill and operates quietly, ensuring that it won’t disrupt the party.
Bubbles will add an ethereal touch to your celebration, making it feel like a true underwater kingdom.
- 【High Output 18000+ Big Colorful Bubbles】Upgraded Zerhunt Bubble Machine Can Generate More Than 18000+ Bubbles Per Minute With 6 Spinning Wands,2 Speed Level & Super Built-In Motor. It Can Blow Tons of Colorful Bubbles Faster, Higher And Further Even Inside With No Wind.
- 【Top Quality Materials & Safe Design】Made From Durable & High Quality ABS Material With Superior Toughness And Rust Protection, This Bubble Maker With Official CPC Toy Safety Certification Won't Be Harmful To Kid, Toddlers ,Pets And Adults. Upgraded And Special Safe Design: Once Touch The Spinning Wands, And The Bubble Machine Will Once Stop Working.
- 【High Capacity 320ml Solution For Continuous Use】320ml/11.26oz Capacity Of The Liquid Tank And 30mins Continuous Use, It Is Not Necessary To Add Bubble Liquid In Several Times, So You Can Enjoy Uninterrupted Bubbles Leisure Time!
- 【Three-Ways Powered】The Bubble Blower Can Be Powered By 4 Batteries (Not Included) Or Plug In With Adapter(Not Included), Car Charge Or Power Bank, Providing Maximum Convenience For You And Let You Enjoy The Bubble Machine Indoor And Outdoor.
- 【Great Gift For Kids & Pets】This Bubble Machine Can Bring Endless Fun And Dreamy Atmosphere In A Series Of Activities Such As Weddings, Birthdays, Parties, Outdoor Garden Yard Etc. The Bubbles For Kids Toddlers Is Definitely Perfect Outdoor Toys And Great Gift For Toddlers, Kids & Pets. Just Get This Bubble Machine For Your Lovely Kids Now!
10. LED Mermaid String Lights
Finally, we have the LED Mermaid String Lights that illuminate your party space beautifully.
These lights come in a delicate mermaid shape and can be hung around the party area for a soft, enchanting glow. Powered by batteries, these lights are safe for indoor and outdoor use, adding charm to your decorations.
Ideal for setting the mood, these string lights can also double as room decor forbedroom, extending their use beyond the party.
- LED Lights: 30 LED lights create a soft, ocean-inspired glow
- Decorative String Lights: 10-foot nautical rope light adds a whimsical touch
- Battery Operated: Powered by 3 AA batteries (not included) with timer function
- Remote Control: Wireless remote allows you to control the lights from a distance
- Safe and Durable: Low voltage LEDs provide a gentle, flicker-free glow
Buying Guide for Mermaid Birthday Decorations
When shopping for the best mermaid birthday decorations, consider the following factors to ensure you select the perfect elements for your party:
1. Theme Compatibility
Before purchasing decorations, think about your overall theme. The more cohesive your decor, the more magical the atmosphere. Look for products that complement each other in color and design.
2. Quality of Materials
Select decorations made from high-quality materials to ensure durability and safety, especially if you’re serving food. Disposable items should still be sturdy enough for use throughout the event.
3. Child-Friendly Options
When hosting a children’s party, choose decorations that are non-toxic, safe, and suitable for kids. Avoid small parts that could be choking hazards and opt for decorations designed for durability.
4. Size and Scale
Consider the size of your party area when choosing decorations. Larger banners and backdrops can create a focal point, whereas smaller items can accentuate specific areas without overwhelming the space.
5. Ease of Setup
Choose decorations that are easy to set up and take down. While you want to create a beautiful environment, you also want to minimize stress and chaos on party day.
Conclusion
A mermaid-themed birthday party can sweep your guests off their feet and create memories that will last a lifetime. By selecting from the best mermaid birthday decorations available on Amazon in 2025, you can curate an enchanting atmosphere that will be the talk of the ocean! From playful balloons to elegant themed tableware, you have an array of options to make your celebration truly special. Happy planning!
Last update on 2025-07-21 / Affiliate links / Images from Amazon Product Advertising API | hishecozy.com is a participant in the Amazon Associate program and will earn from qualifying purchases.
