The Little Mermaid - 5 Halloween Costume Ideas

The Little Mermaid Costume Ideas in 2026

Teal fin or purple gown, an easy Disney win.
mermaid Princess red hair women animated Family classy
Prince Eric From The Little Mermaid (2023)
The Little Mermaid

Prince Eric From The Little Mermaid (2023)

Dress Like Ariel
The Little Mermaid

Dress Like Ariel

Ursula Costume
The Little Mermaid

Ursula Costume

Ariel Halloween Costume Guide
The Little Mermaid

Ariel Halloween Costume Guide

Melody From The Little Mermaid
The Little Mermaid

Melody From The Little Mermaid

About The Little Mermaid Costumes

The Little Mermaid costumes center on Ariel's teal fin and seashell top, or her purple gown for scenes on land. Build the fin as a full mermaid tail for maximum impact, or simplify it into a teal skirt if you actually need to walk around the party.

Both the animated classic and the newer live-action version keep this story in wide circulation, and Ariel is recognized across generations, making this one of the most reliably crowd-pleasing Disney picks on the site.

If you're planning to actually dance at the party, skip the full tail and go with the teal skirt version, it reads just as clearly as the fin without limiting how you move.

Ariel and Eric make a classic duo with a built-in story. For a group, add Ursula and Sebastian, the villain's purple and the crab's red give the group real color contrast against Ariel's teal.

The Little Mermaid Costumes: FAQ

Not for a party. A teal or green skirt or dress with a fin-shaped hem gets the idea across without limiting your ability to walk around.

Either works and both are widely recognized. Pick based on which specific color palette and hair style you find easier to put together.

Yes. Between the animated classic and the live-action remake, the story reaches a wide, multi-generational audience.

Red hair. Even with a simplified outfit, Ariel's specific red hair color is the fastest way people place the character.