The Little Mermaid Costumes
The Little Mermaid has a few clear characters to choose from, and most of them are easy to put together. Pick one that suits the wearer and the occasion.
For kids

Disney Little Mermaid Ariel Girl's Costume Outfit
from $44.99$59.99

Disney Little Mermaid Infant Sebastian Costume
from $44.99$49.99

Disney Little Mermaid Flounder Kid's Costume
from $49.99$59.99

The Little Mermaid Posh Ariel Costume for Infants
from $19.99$49.99

Disney Little Mermaid Plush Flounder Costume
from $49.99

Disney Little Mermaid Toddler Flounder Costume
from $49.99

Disney The Little Mermaid Prince Eric Costume for Boys
from $49.99

Kid's Disney The Little Mermaid Flounder Dress
from $49.99

Little Mermaid Flotsam and Jetsam Toddler Costume
from $49.99

Toddler Little Mermaid Sebastian Costume
from $49.99

Ariel Classic Girls Costume
from $39.99

Disney Little Mermaid Prince Eric Toddler Costume for Boys
from $39.99

Little Mermaid Toddler Plush Flounder Costume
from $39.99

Girl's Little Mermaid Ariel Costume
from $59.99

Tween Ursula Disney Costume for Girls
from $59.99

Disney Little Mermaid Infant Flounder Costume
from $29.99

Disney Little Mermaid Flotsam and Jetsam Costume
from $69.99
For adults

Disney The Little Mermaid Pet Ursula Costume
from $39.99$49.99

Disney The Little Mermaid Prince Eric Costume for Men
from $54.99$59.99

Little Mermaid Plus Size Ariel Blue Dress Costume
from $54.99$69.99

Plus Size Little Mermaid Prince Eric Costume
from $14.99$59.99

Cakeworthy Women's Ursula Mesh Top
from $4.99$29.99

Plus Size Disney Ariel Mermaid Dress for Women
from $89.99$114.99

Women's Little Mermaid Ariel Mermaid Costume
from $89.99$99.99

Women's Disney Little Mermaid Prestige Ursula Costume
from $99.99$129.99

Women's Plus Size Authentic Ursula Costume
from $119.99$199.99

Ariel Blue Dress Women's Costume
from $59.99

Disney Little Mermaid Women's Costume Outfit
from $69.99

Disney The Little Mermaid Adult Flounder Costume
from $69.99

Disney The Little Mermaid Adult Sebastian Costume
from $69.99

Little Mermaid Disney Ariel Deluxe Adult Costume
from $79.99

Little Mermaid Flotsam and Jetsam Adult Costume
from $79.99

Adult Premium Disney Little Mermaid Ursula Costume
from $99.99

Plus Size Deluxe Disney Ursula Costume for Women
from $114.99

Disney Little Mermaid Ariel Pink Dress Costume
from $129.99

Plus Size Little Mermaid Ursula Prestige Costume for Women
from $129.99

Women's Plus Size Disney Ariel Pink Dress Costume
from $149.99

Authentic Ursula Costume for Women
from $199.99
Accessories and finishing touches

Little Mermaid Ursula Latex Mask
from $34.99$59.99

Disney Ursula Women's Blazer
from $29.99$59.99

Disney Little Mermaid Flotsam and Jetsam Costume Scarf
from $24.99$29.99

Little Mermaid King Triton Beard and Wig Kit
from $19.99$24.99

Ariel Child's Ultra Prestige Costume Wig
from $39.99

Little Mermaid Flounder Costume Companion
from $39.99

Disney The Little Mermaid Women's Blazer
from $59.99

Disney Little Mermaid King Triton Staff
from $24.99

The Littler Mermaid Ariel Child Deluxe Wig
from $24.99

Disney Little Mermaid Ursula Headband & Collar Set
from $19.99

King Triton Costume Kit The Little Mermaid
from $19.99
Getting the look
Characters for children
- Ariel: the most popular choice. Look for a green mermaid tail or skirt, a shell top and long red hair. A wig or a red hair band with a ponytail does the job.
- Flounder: a bright yellow and blue fish. A yellow top with blue stripes and a fin headband is enough.
- Sebastian: the red crab. A red outfit, claw mittens and antennae on a headband make him easy to spot.
Characters for adults
- Ariel: a mermaid dress or tail with a shell top and red hair works well for parties and Halloween. Some people choose the pink dress or the blue dress from the film instead.
- Ursula: the sea witch. Think purple skin, white hair, black dress and a dramatic necklace. The tentacles can be done with a long skirt or extra fabric.
- Prince Eric: a white shirt, a sash and dark trousers. It is a simple look for a group or couples costume.
Finishing touches to make at home
A few small extras make a big difference and cost very little.
- Shell hair clips: glue small shells or craft shells onto plain clips. Let the glue dry fully before wearing.
- A seaweed scarf or sash: cut strips of green fabric and tie them together. It works for Ariel or as a sea creature accessory.
Choosing the right size
Measure height and chest, then check the size chart for the costume you like. Tails and fitted skirts can limit movement, so children who will be running around may be more comfortable in a looser fit or a size up. Check the label for care instructions, and do a small skin test before using any face paint.