Mermaid Dog Costumes

With these adorable mermaid dog costumes, your furry best friend can be just as mermazing as you are for Halloween!

You can go the creative route and make your dog a mermaid costume for Halloween, or you can shop these costumes found on Amazon.

*This article includes affiliate links. If you make a purchase through them I may get a small commission at no extra cost to you. This helps keep my website afloat.

Best mermaid dog costumes from Amazon

Sequin mermaid dog costume

This adorable girly mermaid dog costume will transform your pup into a magical merdog at an affordable price.

Once your dog has this costume on, they are ready for some mermaid princess doggy adventures.

It comes in size XS to XL, so dogs of all sizes can wear this fun costume.

Cost: $9.99

Little Mermaid Ariel dog costume

Don't miss the chance to bring some Disney magic to your furbaby for Halloween. This Disney-licensed Little Mermaid dog costume by Rubies will take the prize at a dog Halloween costume contest.

Complete with a tail, seashell top, and fiery red wig, this is the perfect costume for a small or medium beach-loving dog.

Cost: $31.99

Midlee mermaid dog costume

This dog looks mildly embarrassed, but I think they look fabulous in this mermaid tail dog costume.

With this two-piece holographic mermaid scale set, your furbaby will look like they've just emerged from a mermaid storybook.

Cost: $21.99

Mermaid dog costume with bow

This adorable mermaid tail costume is easy to dress your dog in, with simple Velcro straps. Your dog will look like a magical merpup with the little bow adding a feminine touch.

This costume is for small dogs only, but it would also fit on a cat!

Cost: $15.25

LED mermaid dog costume

Let your dog light up the room with this LED mermaid dog costume! Now this is a next-level dog Halloween costume.

This mermaid costume runs on 2 AA batteries, which it does not come with, so make sure to grab some before you bring your dog to dazzle the crowd at a party.

Cost: $12.99

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Now your beloved pup is ready to go out in the best mermaid Halloween costume! Feel free to share with me any or your mermaid doggo pictures. I would be delighted!

Happy spooky season!

About the author

Shello! My name is Mermaid Liv, a professional mermaid and content creator. I share my love of mermaiding through this blog, along with my Youtube channel.

If you've never heard of it before, mermaiding is a hobby, profession, and sport that involves wearing mermaid tails made for swimming.

I began making tails in 2013 and have continued my mermaid journey, starting my Youtube channel, working at a mermaid festival, performing at gigs, and being featured in the Netflix Docu Series MerPeople.

Follow me on Instagram for mermaid photos and videos: @the_real_mermaid_liv and be *shore* to check out my Youtube channel.