Mermaid costume
Mermaid costume for sale on Ireland's largest auction and classifieds sites
Girls mermaid tail swimming - girls, - £14.15
- Free postage - New and Used
- Free postage - New and Used
Little mermaid costume kids - little, - £15.99
Soft breathable fabrics • Provide your little • Girl comfortable wearing - Free postage - New and Used
Soft breathable fabrics • Provide your little • Girl comfortable wearing - Free postage - New and Used
Girls mermaid ariel costume - girls, - £10.49
Typical beautiful princess • Dress color pink • Rose red light - Free postage - New and Used
Typical beautiful princess • Dress color pink • Rose red light - Free postage - New and Used
Kids mermaid tail with - kids, - £16.65
Swimwear monofin only • Black could also • Used bathing suit - Free postage - New and Used
Swimwear monofin only • Black could also • Used bathing suit - Free postage - New and Used
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Little girls mermaid costume - little, - £14.98
Die glicherweise den • Ziell ndern auftreten • Und vom ufer - Free postage - New and Used
Die glicherweise den • Ziell ndern auftreten • Und vom ufer - Free postage - New and Used
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48 listings · from £2.98 · avg £11.68
⚠️ These listings were last updated more than 23 days ago.
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Browse 48 mermaid costume listings currently in our index. Prices range from £2.98 to £25.29, with an average of £11.68. Whether you are hunting for a bargain or looking for a top-spec model, the selection below covers all price points — new, used and refurbished. More about mermaid costume →
Kids mermaid tail with - mermaid, - £7.98
Swimwear monofin only • Black could also • Used bathing suit - Free postage - New and Used
Swimwear monofin only • Black could also • Used bathing suit - Free postage - New and Used
2026 3pcs girls mermaid tail - 2026, - £17.59
Top length bust • Height suggest age • This best gift - Free postage - New and Used
Top length bust • Height suggest age • This best gift - Free postage - New and Used
Women mesmerizing mermaid - mesmerizing, - £9.99
Stand out feel • Like mythical sea • Creature this stunning - Free postage - New and Used
Stand out feel • Like mythical sea • Creature this stunning - Free postage - New and Used
Girls mermaid tail swimming - mermaid, - £2.98
Could also used • Bathing suit bikini • Set swimsuit alone - Free postage - New and Used
Could also used • Bathing suit bikini • Set swimsuit alone - Free postage - New and Used
Halloween girls mermaid - girls, dress - £8.00
Gender girls our • Warehouse not open • Available you will - Free postage - New and Used
Gender girls our • Warehouse not open • Available you will - Free postage - New and Used
Ariel the little mermaid - little, - £6.99
Gorgeous long dress • Sea greens blues - Free postage - New and Used
Gorgeous long dress • Sea greens blues - Free postage - New and Used
Deluxe mermaid costume - mermaid, - £8.49
Washing instructions dry • Clean only product • Code 48003 key - Free postage - New and Used
Washing instructions dry • Clean only product • Code 48003 key - Free postage - New and Used
New girls mermaid tail - mermaid, - £5.98
Could also used • Bathing suit bikini • Set swimsuit alone - Free postage - New and Used
Could also used • Bathing suit bikini • Set swimsuit alone - Free postage - New and Used
Kids girls mermaid lovely - kids, - £3.49
- Free postage - New and Used
- Free postage - New and Used
Little girls mermaid costume - little, - £16.88
Gender girls - Free postage - New and Used
Gender girls - Free postage - New and Used
Adult hologram metallic shiny - hologram, - £14.36
Also including waist • Pearl chain included • Good gift your - Free postage - New and Used
Also including waist • Pearl chain included • Good gift your - Free postage - New and Used
Ladies turquoise mermaid - ladies, - £4.38
This ladies turquoise • Mermaid costume great • Choice any fancy - Free postage - New and Used
This ladies turquoise • Mermaid costume great • Choice any fancy - Free postage - New and Used
Girls mermaid tail swimming - girls, - £11.98
Could also used • Bathing suit bikini • Set swimsuit alone - Free postage - New and Used
Could also used • Bathing suit bikini • Set swimsuit alone - Free postage - New and Used
A2z kids girls - girls, one - £9.99
A2z has introduced • Full range stylish • Comfortable swimsuits whether - Free postage - New and Used
A2z has introduced • Full range stylish • Comfortable swimsuits whether - Free postage - New and Used
Girls mermaid tail - girls, - £16.00
- Free postage - New and Used
- Free postage - New and Used
Girls princess costume - girls, - £15.99
Color picture due • Difference between different • May not reflect - Free postage - New and Used
Color picture due • Difference between different • May not reflect - Free postage - New and Used
Mermaid costume girls dress - mermaid, - £9.90
Stitching double layered • Hemline details flutter • Sleeves playful cute - Free postage - New and Used
Stitching double layered • Hemline details flutter • Sleeves playful cute - Free postage - New and Used
Girls mermaid costume - girls, - £12.98
Help you solve • Will glad reply • Our best service - Free postage - New and Used
Help you solve • Will glad reply • Our best service - Free postage - New and Used
Girls women mermaid tail - girls, - £17.18
Train horn 12v • Single tail • Applicable scenario swimming - Free postage - New and Used
Train horn 12v • Single tail • Applicable scenario swimming - Free postage - New and Used
Little girls mermaid - girls, costume - £23.98
Lights can easily • Removed from underskirt • Convenient washing ensuring - Free postage - New and Used
Lights can easily • Removed from underskirt • Convenient washing ensuring - Free postage - New and Used
Girls mermaid dressing - girls, - £4.97
Rubies fancy dress • Product age height • Guide elasticated back - Free postage - New and Used
Rubies fancy dress • Product age height • Guide elasticated back - Free postage - New and Used
Kids girls little mermaid - girls, - £19.99
Gender girls 1pc • Only dress wig • Accessories set due - Free postage - New and Used
Gender girls 1pc • Only dress wig • Accessories set due - Free postage - New and Used
Stock kids girls princess - uk, - £8.39
Suggest age will • Reply within hours • Believe communication leads - Free postage - New and Used
Suggest age will • Reply within hours • Believe communication leads - Free postage - New and Used
Adult women xmas gift - adult, - £15.56
- Free postage - New and Used
- Free postage - New and Used
Little girls mermaid costume - little, - £21.98
Tulle clothes should • Not mixed washed • Prevent hook silk - Free postage - New and Used
Tulle clothes should • Not mixed washed • Prevent hook silk - Free postage - New and Used
Zaisuifun mermaid costume - zaisuifun, - £25.29
Nan - Free postage - New and Used
Nan - Free postage - New and Used
Little girls mermaid costume - little, - £21.98
Tulle clothes should • Not mixed washed • Prevent hook silk - Free postage - New and Used
Tulle clothes should • Not mixed washed • Prevent hook silk - Free postage - New and Used
The little mermaid swimsuit - the, - £11.99
Vibrant pink surfsuit • Showcases beloved characters • Ariel flounder surrounded - Free postage - New and Used
Vibrant pink surfsuit • Showcases beloved characters • Ariel flounder surrounded - Free postage - New and Used
Girls mermaid ariel princess - ariel, - £9.49
- Free postage - New and Used
- Free postage - New and Used
Women mermaid costume - uk, - £6.19
- Free postage - New and Used
- Free postage - New and Used
Kids girls mermaid rainbow - kids, - £6.99
7years kids color • Picture due difference • Between different computer - Free postage - New and Used
7years kids color • Picture due difference • Between different computer - Free postage - New and Used
Mermaid costume kids - costume, - £3.31
New only taken • Out packaging kids • Years old mermaid - Free postage - New and Used
New only taken • Out packaging kids • Years old mermaid - Free postage - New and Used
Kids mermaid tail with - mermaid, - £9.98
Swimwear monofin only • Black could also • Used bathing suit - Free postage - New and Used
Swimwear monofin only • Black could also • Used bathing suit - Free postage - New and Used
Disney store little mermaid - disney, - £7.86
Disney store little • Mermaid ariel costume • Years old stylish - Free postage - New and Used
Disney store little • Mermaid ariel costume • Years old stylish - Free postage - New and Used
Kids mermaid costume dress - costume, - £5.98
This kids mermaid • Costume dress perfect • Girls aged who - Free postage - New and Used
This kids mermaid • Costume dress perfect • Girls aged who - Free postage - New and Used
Girls mermaid ariel fancy - mermaid, - £11.66
Typical beautiful princess • Dress your little • Mermaid you have - Free postage - New and Used
Typical beautiful princess • Dress your little • Mermaid you have - Free postage - New and Used
Kids girls mermaid - girls, rainbow - £7.99
7years kids color • Picture due difference • Between different computer - Free postage - New and Used
7years kids color • Picture due difference • Between different computer - Free postage - New and Used
Mermaid costume kids - mermaid, - £10.80
This mermaid costume • Kids stunning green • Dress girls complete - Free postage - New and Used
This mermaid costume • Kids stunning green • Dress girls complete - Free postage - New and Used
Mermaid skirt ladies fancy - mermaid, - £15.99
Addams family wizard • Scooby doo just • 1.50 extra educational - Free postage - New and Used
Addams family wizard • Scooby doo just • 1.50 extra educational - Free postage - New and Used
Girls disney deluxe the - disney, little - £18.74
Official disney design • Authentic details truly • Magical transformation let - Free postage - New and Used
Official disney design • Authentic details truly • Magical transformation let - Free postage - New and Used
Stock kids girls princess - uk, - £7.19
Suggest age will • Reply within hours • Believe communication leads - Free postage - New and Used
Suggest age will • Reply within hours • Believe communication leads - Free postage - New and Used
Rubie official deluxe - rubie's, - £6.52
This rubie official • Deluxe mermaid costume • Girls medium perfect - Free postage - New and Used
This rubie official • Deluxe mermaid costume • Girls medium perfect - Free postage - New and Used
Girls mermaid ariel - girls, - £4.55
Pakage dress color • Photos - Free postage - New and Used
Pakage dress color • Photos - Free postage - New and Used
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Everything you need to know about mermaid costume
Whether you are looking for a brand-new or second-hand mermaid costume, eBay offers one of the largest selections available online. With 48 active listings at the time of this page's last update, you have plenty of choice across different conditions, sellers and price points. The cheapest option currently starts at £2.98, while premium listings can reach £25.29 — giving you a wide budget spread to work with. The average price of £11.68 can serve as a useful benchmark: listings below this tend to be used or auction-style, while those above often include extra accessories, warranties, or are sold by professional sellers with high feedback scores. Always check the seller's feedback rating and return policy before committing to a purchase. If you need the item quickly, filter by "Buy It Now" to avoid the uncertainty of auctions. For used items, look closely at the condition description and photos — terms like "good", "very good" and "like new" can mean very different things depending on the seller.