Mermaid Wall Decals

Mermaid wall decals and stickers for under-the-sea bedrooms, bathrooms and beach-themed rooms. Pick cartoon mermaids for kids or painterly, artistic designs for grown-up spaces. Add sea life decals to build a full ocean scene. All mermaid decals are removable peel-and-stick vinyl in multiple sizes.

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  • Free custom sizingAny design, sized to your wall
  • Free shipping $149+On orders over $149
  • Removable vinylPeels off without wall damage
  • 60-day returnsNot happy? We'll make it right

249 designs

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Frequently Asked Questions

1What is a mermaid wall decal made of, and will it damage my walls?

No. WallMonkeys decals are cut from a premium semi-gloss vinyl. They go up with no tape, nails, or glue, and peel off cleanly without damaging paint or leaving residue.

2How do I apply it?

Unroll the decal and let it rest for at least an hour (overnight is best), then apply to a clean, dry, smooth surface. Peel the backing away from one corner and smooth the decal upward, working out air bubbles as you go.

3Can I remove it later, or reposition it?

Yes — it peels away cleanly from a corner with no residue or wall damage. In an average indoor environment a WallMonkeys decal holds up for 3-5 years, so most customers treat placement as long-term rather than something they'll peel off right away.

4What sizes are available — can I get a custom size?

Standard sizes start at 12 inches and go up to 6 feet tall, and every design can be custom-sized to fit your wall. Full wall murals ship as 48-inch-wide panels with a 1-inch overlap for seamless installation.

5Will a mermaid decal hold up in a humid bathroom?

Decal longevity depends on surface texture and humidity — in an average room it holds up 3-5 years, though a high-humidity spot like a bathroom may shorten that somewhat. A well-ventilated bathroom wall is still a good fit for a beach or mermaid theme.