Best Plus Size Mermaid Costumes (Oct. 2026) - Rated by CherryPicks' Experts

At a Glance: Our Top Picks

Top 1

Wehhbtye 7 Pcs Halloween Mermaid Costume for Women Adult, Mermaid Tube Top Sk...

9.8
CPR Score
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Top 2

Party King Women's Plus Size Blushing Beauty Mermaid, Multi, 1X-Large

9.8
CPR Score
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Top 3

Remimi Womens Mermaid Dress Halloween Princess Costume Sea Blue Fancy A-Line ...

9.6
CPR Score
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Tips

We researched and analyzed dozens of Plus Size Mermaid Costumes reviews from different Dressing Up & Costumes brands, including Generic, Topdress, California Costumes, Funna, Fun Costumes, Wehhbtye, Remimi And Poboola. We've selected 20 best Plus Size Mermaid Costumes in the following ranking by considering price, product features, easy to use and so on.

* CherryPicks.Reviews is reader-supported, Our editor review, and recommend the best products based on extensive data analysis, if you click on the product links, we may earn a commission through qualifying products purchased.

The Best Plus Size Mermaid Costumes Rated by CherryPicks

Market Overview
Plus Size Mermaid Costumes Reviewed
  • Reviews Analyzed: 12,057 Items
  • CPR Avg. Rating: 9.0 / 10
20 Products Evaluated
  • Highest Price: $140.59
  • Lowest Price: $18.99
  • Avg. Price: $46.59
Price Disclaimer

Top 20 Plus Size Mermaid Costumes on Amazon (Verified You can Buy)

Top 1 Best for Mermaid

Wehhbtye 7 Pcs Halloween Mermaid Costume for Women Adult, Mermaid Tube Top Skirt Costume with Curly Wig and Sequin Purse, Shell Necklace Bracelet Waist Chain for Halloween Cosplay Dress Up Theme Party

Wehhbtye

Ratings for Wehhbtye (CPR Score)

9.8
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Customer Reviews
Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Wehhbtye - ❌ ❌ ❌

Features

What You Get: The package includes a purple tube top, a green mermaid skirt, a long curly red wig, natural shell necklace, bracelet, waist chain, and a shiny sequined purse
Size and Fit Guide: Designed for adult women, this costume features elastic fabric for a comfortable fit. The tube top fits busts from 23–31 inches, and the skirt waist stretches between 25–35 inches, with a hem length of 33 inches. Please refer to the detailed size chart in the images and confirm measurements before ordering. For personalized sizing help, feel free to contact us!
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Top 2 Best for Mermaid

Party King Women's Plus Size Blushing Beauty Mermaid, Multi, 1X-Large

Party King
PK1904XL-1X
0.63 Pounds

Ratings for Party King (CPR Score)

9.8
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Amazon.com - ✅ ✅ ✅

Features

Includes mermaid dress.
Features beautiful sequin and embroidery details as well as bead and shell accents.
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Top 3

Remimi Womens Mermaid Dress Halloween Princess Costume Sea Blue Fancy A-Line Dresses 2XL

Remimi

Ratings for Remimi (CPR Score)

9.6
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Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Deeunicorn - ❌ ❌ ❌

Features

Enchanting Mermaid Look: This Womens Princess Dress Features Scoop Neck, Elastic Waist, V-Shaped Design, Elastic Cuff, Long Sleeve, Lightweight Fabric Allows For Easy Movement, And The Elegant Design Will Make You The Most Memorable One In Party
Complete Your Fairytale Look: Pair This Enchanting Blue Dress With Bow And Seashell Accessories To Create A Mythical Princess Ensemble. This Sea Princess Dress Will Be The Centerpiece Of Your Unforgettable Night
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Top 4 Best for Mermaid

Cosplay.fm Women's Vintage Gothic Long Dress Witch Style Black Dress Halloween Cosplay Costume Dress (Plus Size, Black)

Cosplay.fm

Ratings for Cosplay.fm (CPR Score)

9.6
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Customer Reviews
Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Mayflower Trading LLC - ❌ ❌ ❌

Features

The black gothic dress is made with high-quality materials, highly strech, skin-friendly, and has a draping quality, which will perfectly show your curves and make you stand out at any event.
Features: V-neck/ Trumpet Sleeves with Lace Streamers/ Lace Veil Hem/ Black Long dress/ Mermaid Skirt Bottom/ High Waist Maxi Dress/ Back Zipper
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Top 5 Best for Mermaid

Womens Deep Sea Siren Mermaid Halloween Costume Adult Mermaid Costume Ariel (Purple, XXL)

Waruila

Ratings for Waruila (CPR Score)

9.6
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waruila kids clothes - ❌ ❌ ❌
Top 6

KorViSHOW Mermaid Costume for Women, 12 Pcs Summer Accessories Set, Boho

KorViSHOW

Ratings for KorViSHOW (CPR Score)

9.4
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KorViSHOW - ❌ ❌ ❌

Features

Mermaid Accessory Set:​ A 12-piece set designed for movement and drama, including 1 crochet skirt, 1 fishnet glove, 1 waist chain, 1 bracelet, 1 ankle chain, 2 rings and 5 hair clips for versatile styling
Oceanic Mermaid Design:​ Every piece features seashells, starfish, pearls, and aquatic motifs in shimmering silver, sea blue, and iridescent finishes, creating a magical underwater aesthetic that transforms the wearer into an enchanting sea creature
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Top 7 Best for Funna

Funna Girls Mermaid Costume Princess Dress Up with Accessories Purple, 4T

Funna
Fna_6304PS_120
14.2 x 11.0 x 1.2 inches

Ratings for Funna (CPR Score)

9.4
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FUNNA us - ❌ ❌ ❌

Features

100% Polyester
Sling fish skirt
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Top 8

Poboola Ariel Costume Women Mermaid Princess Dress Adult Halloween Party Cosplay Blue Classic Fancy Dress with Headwear 3XL

Poboola

Ratings for Poboola (CPR Score)

9.3
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APPOBON - ❌ ❌ ❌

Features

Mermaid dress, women princess dress up for adult, ariel costume women. Blue long dress is a halloween cosplay costumes, with a light blue bow hair tie, wear this outfit you are as beautiful as princess, this is a classic character role, come and play the game with your best friends!
Classic design: High-waisted design, paired with a black belt, the blue skirt is waist-cinching and slim-fitting. If the size is not suitable, you can contact me at any time. Put it on, let you show elegance and let you stand out in mermaid theme party.
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Top 9

Ramede 5 Pcs Halloween Purple Octopus Costume Women Long Style XXL

Ramede
Ramede-CSTU-3307
3.47 pounds

Ratings for Ramede (CPR Score)

9.3
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Heyustar - ❌ ❌ ❌

Features

Complete Witch Costume Set: enjoy a complete women's Halloween witch costume that includes 1 black tight short sleeve, 1 gold shell necklace, 1 gold clams earrings, 1 gold crown, 1 purple chiffon skirt with 3 dimensional octopus tentacles; It's not just an ordinary costume; It's a complete ensemble for ideal witch portrayal
And Attention Grabbing: the black and purple colors mix beautifully to depict the witch theme in the most appealing and innovative way; The octopus cosplay costume features a 3 dimensional octopus tentacle and comes with 1 gold shell earrings, 1 gold shell necklace, 1 gold crown, enabling to stand out from the crowd during many occasions
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Top 10

Newcotte 4 Pcs Mermaid Costume for Women Sequin Tube Top Skirt Pearl Waist and Head Chain for Halloween Cosplay (Green, Purple,X-Large)

Newcotte

Ratings for Newcotte (CPR Score)

9.1
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Redkou - ❌ ❌ ❌

Features

Package Includes: you will get a set of mermaid costume for women, Including a mermaid skirt, a sequin tube top in average size, gold pearl waist chain, starfish pearl head chain
Easy to Wear: mermaid skirt is made of polyester and spandex, the fabric has elasticity, not very tight or very loose to wear; The tube top comes with an elastic rubber band, suitable for most women; The chain decoration fits the mermaid theme, ideal to make you look more attractive
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Top 11

8 Pcs Mermaid Costume for Women,Halloween Costumes, Lake Blue, X-Large

Croknit
QNH-Croknit-1547

Ratings for Croknit (CPR Score)

9.0
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Qinhenes - ❌ ❌ ❌

Features

Comprehensive Costume Set: our mermaid costume women comprises a 8 piece set including 1 skirt, 1 sequined top, 1 red wig, 1 crown, 1 pair of starfish hair clips, 1 box of body and face sequins, 1 faux pearl necklace, as well as 1 pearl bracelet; These added accessories enhance the look, making you feel like you're part of a fairy tale
Reliable and Precise Design: this green mermaid skirt is made from 90% polyester and 10% spandex ensuring a good fit as the fabric is stretchy and comfortable to wear; The lake blue mermaid tail for adults features a shimmering fish scale print and ruffles at the bottom, creating a captivating illusion of fins, giving a realistic version of a mermaid
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Top 12

California Costumes womens Dark Sea Siren/Adult Adult Sized Costumes, Green/Blue, Medium US

California Costumes
CCC-5020-068
18.0 x 13.0 x 3.0 Inches

Ratings for California Costumes (CPR Score)

8.7
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Amazon.com - ❌ ❌ ❌

Features

Includes: Dress, Headpiece, Shoulder Drapes, Net Draped Collar
Size: Medium
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Top 13

Fun Costumes Women's Sea Siren Costume for Plus Size 1X

Fun Costumes
MIE60
15.0 x 12.0 x 3.0 inches

Ratings for Fun Costumes (CPR Score)

8.6
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HalloweenCostumes 582 ❌ ❌ ❌

Features

Size: 1X
mythological mythical women womens sea ocean creature little mermaid tail atlantis plus-size adult Halloween costume
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Top 14

Topdress Women's 1950s Vintage Tutu Petticoat Ballet Bubble Skirt (26 Colors) Black Purple XXL

Topdress
AGRN59-Black-Purple-XXL/XXXL-1

Ratings for Topdress (CPR Score)

8.6
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topdress - ❌ ❌ ❌

Features

Material: tulle, lining
Size: M(US Size 0-10) Waist:cover approx 23.5-31.5 inch. XL(US Size 12-16plus)Waist:cover approx 31.5-39 inch. XXL(US Size 18plus-26plus)Waist:cover approx 39-50 inch. Skirt Length:(waist to hem)is approx 18 inch
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Top 15

Women's Halloween Mermaid Tail Costume Dress Cosplay Party Sequin Maxi Skirt (US, Alpha, X-Large, Regular, Regular, Green)

GUEMONG
mei001

Ratings for GUEMONG (CPR Score)

8.5
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Baby brothers - ❌ ❌ ❌

Features

Women's mermaid costume is made of premium polyester and sequins fabric. The waist of the mermaid skirt is made with elasticity material, very comfortable
Women's Mermaid Tail Costume Sequin Maxi Skirt Cosplay Halloween Party Dress
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Top 16

Lorilida Women Halloween Mermaid Sea Witch Cosplay Masquerade Costume Long Sleeve Ruffle Maxi Dress Purple Large

Lorilida
LLD1052926910529272

Ratings for Lorilida (CPR Score)

8.4
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Lorilida - ❌ ❌ ❌

Features

Made of skin-friendly polyester and mesh with good elasticity and draping, premium fabric is breathable and comfortable to wear
Designed with long sleeve, scoop neck and sweetheart illusion, cascading ruffle and asymmetrical hem, pullover style, contrast coplasy dress
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Top 17

California Costumes Women's Medusa Costume, Black, 2XL (18-20)

California Costumes
1622-Black-2XL (18-20)
2.7559 x 2.7559 x 1.1811 inches
1.0 Pounds
  • Unknown: English

Ratings for California Costumes (CPR Score)

8.4
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Amazon.com - ❌ ❌ ❌
Amazon Resale - ❌ ❌ ❌

Features

Spot Clean Only
100% Polyester
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Top 18

Octopus Tentacle Skirt Sea Witch Costume for Halloween Cosplay (Purple, XXL)

Generic

Ratings for Generic (CPR Score)

8.3
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Customer Reviews
Seller CPR Rank Amazon Fulfilled Prime Free Shipping
muyiyushangmao - ❌ ❌ ❌

Features

Adult Women’s Costume Skirt – Designed as a Halloween and cosplay outfit for women, not a toy or child’s dress-up item.
Unique Tentacle Design – Eight flowing black and purple tentacles create dramatic ocean-inspired movement.
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Top 19 Best for Mermaid

California Costumes, Storybook Mermaid, Women's Size Large

California Costumes
5023-129

Ratings for California Costumes (CPR Score)

8.2
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Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Megatoys LLC - ❌ ❌ ❌
VitaShopSmart - ❌ ❌ ❌
fenvy - ❌ ❌ ❌
CostumeBoom 2,615 ❌ ❌ ❌

Features

Costume Includes: Bralette with Removable Strap, Skirt with Attached Fin
Women's Large (10-12): Chest 40", Waist 31", Hips 41", Height 68", Up to 155LBs
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Top 20

Mermaid Princess Costume Princess Dress Up Blue Ball Gown with Hairbow for Adult Women (S)

Saniplaycos

Ratings for Saniplaycos (CPR Score)

8.1
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Saniplaycos - ❌ ❌ ❌

Features

Packing List: dress, hairbow.
Material:High quality polyester.
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Top 10 Plus Size Mermaid Costumes - Verified to Buy (October 2026)

Top 10 Plus Size Mermaid Costumes Brands on Amazon

Here is the list of top-rated brands that were evaluated by CherryPicks.

  • Wehhbtye
  • Party King
  • Remimi
  • Cosplay.fm
  • Waruila
  • KorViSHOW
  • Funna
  • Poboola
  • Ramede
  • Newcotte

Related Plus Size Mermaid Costumes Guides

For more personalized Plus Size Mermaid Costumes guides, Check those pages,

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Top 10 Plus Size Mermaid Costumes Sellers: CPR Seller Rank List

CPR sellers rank is based on CherryPicks-AI bestselling ranking system that helps us analyze each seller's sales trends. The List of top seller ranks is our in-house data, essential for our product ranking to help you make the right shopping choice.

Rank Name Yearly Feedbacks Avg. Ratings
🥇 HalloweenCostumes 75,977 4.3
🥈 CostumeBoom 23,160 4.6
🥉 topdress 3,222 4.9
4 VitaShopSmart 2,129 4.2
5 Redkou 1,446 4.9
6 fenvy 1,203 3.9
7 Wehhbtye 667 4.8
8 Amazon.com 386 4.7
9 Deeunicorn 354 4.9
10 FUNNA us 244 4.9
View or download top Plus Size Mermaid Costumes seller & rating report
HalloweenCostumes [75977] CostumeBoom [23160] topdress [3222] VitaShopSmart [2129] Redkou [1446] fenvy [1203] Wehhbtye [667] Amazon.com [386] Deeunicorn [354] FUNNA us [244] HalloweenCostumes 70% CostumeBoom 21% topdress 3% VitaShopSmart 2% Redkou 1% fenvy 1% Wehhbtye 1% Amazon.com 0% Deeunicorn 0% FUNNA us 0%

[Get] Plus Size Mermaid Costumes Deals (✅Exclusively for Prime)

What does "Amazon Fulfilled" Mean?

Amazon Fulfilled refers to products handled by Amazon's logistics, which indicates that the product is stored, packed, and shipped by Amazon from one of its fulfillment centers.

When you order a product that is "Amazon Fulfilled," Amazon takes care of the storage, packing, shipping, and customer service for that product. This often ensures quicker delivery and better customer service compared to products that are not fulfilled by Amazon. It also means that the product is eligible for Amazon's return policy.

What does "Prime" Mean?

"Prime" refers to Amazon Prime Member (Join Amazon Prime Now), which indicates eligibility for Prime benefits. When you see "Prime" next to a product on Amazon, This generally means that if you are  an Amazon Prime member, you can get free two-day shipping on that product, and sometimes even same-day or one-day shipping depending on your location.

Prime members also have access to other benefits, including 2-Day Shipping, Exclusive Member Deals, Prime Video, Buy With Prime, Amazon Music, Prime Gaming, and more.

Shop Prime Plus Size Mermaid Costumes Deals

What does "Free Shipping" Mean?

"Free Shipping" means that you will not be charged additional fees for the shipping of that product. However, unlike "Prime," which usually guarantees fast two-day shipping, "Free Shipping" doesn't necessarily mean fast shipping.

Sometimes there might be a minimum purchase requirement to qualify for free shipping if you are not a Prime member. For Prime members, the "Free Shipping" usually refers to the free two-day shipping that is one of the benefits of the Prime membership.

Why Should You Trust Us?

Now hundreds and thousands of Dressing Up & Costumes supplies are available on Amazon, Picking the right one is not easy, and that may take a lot of your time, Right? and What is the best Plus Size Mermaid Costumes to buy for new October 2026?

CherryPicks’s Methodology for Evaluating Plus Size Mermaid Costumes

We developed the CherryRatings-AI system to identify and score reviews and the CherryPicks-AI ranking system that uses TensorFlow framework to generate the best list, It will help us evaluate Dressing Up & Costumes items that sell on Amazon. The score of items is based on over ten parameters such as analyzing customer review content, product reviewing rating statistics, brand reputation evaluation, comparing product price with features, etc, You can visit How We Rank to learn more in detail.

We collected and analyzed 185 of Plus Size Mermaid Costumes reviews based on our selection criteria. It helped us shortlist the top qualified and rated Plus Size Mermaid Costumes for Dressing Up & Costumes, We found that most customers choose Plus Size Mermaid Costumes with an average price of $46.59, and the top brands are Generic, Topdress, California Costumes, Funna, Fun Costumes, Wehhbtye, Remimi And Poboola. 

Then our expert-level editors reviewed all those quality items and selected the top 20 Plus Size Mermaid Costumes for you, We have researched hundreds of sellers and picked the top sellers for Dressing Up & Costumes, including Amazon Resale, HalloweenCostumes, CostumeBoom, topdress, VitaShopSmart, Redkou, fenvy, Wehhbtye, Amazon.com, Deeunicorn, FUNNA us And Lorilida. The Wehhbtye 7 Pcs Halloween Mermaid Costume for Wo... are available for purchase right now, and The seller of #1 rank product has received honest feedback from 88 consumers with an average rating of 4.3.

We've helped a lot of satisfied users get the right Toys & Games product based on their needs, and save lots of time for them to pick Plus Size Mermaid Costumes to buy.

Written By Cody Jerrems

Cody Jerrems is a programmer, a game lover, and a series movies enthusiast. He loves to write about his interest which is programming, game, and movies. On this platform, he would be providing us reviews, guides, and recommendations on games.

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