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Mermaid Formal Dresses Australia – Prom & Evening Gowns

Shop mermaid formal dresses in Australia — discover designer mermaid dresses, fitted prom gowns and elegant evening dresses at One Honey Boutique.

Explore figure-defining mermaid gowns for school formals, prom, graduations, balls, black-tie events and unforgettable special occasions from leading Australian and international designers.

From sleek satin and structured corset gowns to sparkling sequins, crystal embellishments and dramatic fishtail skirts, discover a mermaid formal dress designed to make an entrance.

Explore Mermaid Formal Dresses

Searching for mermaid formal dresses in Australia? One Honey Boutique curates designer mermaid dresses, mermaid gowns, prom dresses and fitted evening gowns from leading Australian and international designers.

A mermaid dress is known for its fitted silhouette through the bodice and body before flaring toward the lower skirt, creating a dramatic shape for formal occasions. Depending on the individual design, similar silhouettes may also be described as fishtail or trumpet dresses.

Whether you're choosing a gown for a Year 10 formal, Year 11 formal, Year 12 formal, prom, graduation, university ball, gala, black-tie event, wedding or milestone celebration, explore mermaid gowns across an extensive range of colours, fabrics and statement finishes.

Discover mermaid prom dresses and formal gowns featuring satin, sequins, glitter, crystals, beading, lace, tulle and luxe embellishments, alongside sleek minimalist dresses and dramatic statement designs.

Love a structured bodice? Explore our corset formal dresses for sculpted corsetry and statement gowns, including fitted styles that pair corset bodices with dramatic mermaid silhouettes.

Prefer a softer flowing silhouette? Discover our A-line formal dresses for fitted bodices with skirts that flow outward, creating a beautiful alternative to a close-fitting mermaid gown.

Looking for a sleek luxe finish? Browse our satin formal dresses, or explore sequin formal dresses for sparkling statement gowns.

Choosing your mermaid dress by neckline? Explore our off the shoulder formal dresses, halter neck formal dresses and long sleeve formal dresses for more ways to find your perfect silhouette.

Choosing your colour? Explore dedicated collections including black formal dresses, red formal dresses, blue formal dresses, pink formal dresses and green formal dresses.

Shopping for your school formal or prom? One Honey is home to Australia's largest Dress Register, helping participating customers reduce the chance of another registered One Honey customer from the same school selecting the same dress for their event.

Shopping online? Selected One Honey styles offer Virtual Try-On, helping you visualise eligible mermaid formal dresses and available colours as part of your online shopping experience before choosing your gown.

Need extended sizing? Explore our plus size formal dresses Australia collection for curve formal gowns and selected designer styles across extended size ranges.

Want to explore beyond mermaid silhouettes? Browse our complete formal dresses Australia collection for fitted, A-line, corset, ball gown and other designer formal styles.

Complete your mermaid formal look with our clutch bags, formal jewellery and formal accessories.

Proudly Australian owned and trusted since 2011 with over 1,000+ 5-star reviews, One Honey Boutique is a trusted destination for designer prom, school formal and occasion gowns across Australia.

Shop mermaid formal dresses online with Australia-wide delivery and flexible payment options including Afterpay and Zip available at checkout.

Need help choosing your size, checking availability or ordering for a fixed event date? Visit our Help Centre for sizing, delivery and shopping support before ordering.

Want to shop in person? Visit the One Honey Gold Coast showroom to explore selected designer formal dresses available to try on.

Shop mermaid formal dresses in Australia at One Honey Boutique — discover designer mermaid prom dresses, fitted formal gowns and statement eveningwear for your unforgettable occasion.

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AVAILABLE IN-STOREREADY TO SHIP SIZESLARRISA glitter 3D flower applique off the shoulder mermaid formal dress in Royal Blue
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AVAILABLE IN-STOREREADY TO SHIP SIZESSave 30%JAMILLA beaded lace corset bustier satin prom dress in Black
JAMILLA Satin Beaded Detail Corset Bustier Formal Dress Sale priceFrom $482.95 AUD Regular price$689.95 AUD
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AVAILABLE IN-STOREREADY TO SHIP SIZESINGRID off-shoulder stretch velvet mermaid formal dress
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AVAILABLE IN-STOREREADY TO SHIP SIZESFENTY satin beaded detail corset bustier formal dress in Neon Green
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AVAILABLE IN-STOREREADY TO SHIP SIZESSave 30%FALLON satin diamante corset bustier mermaid prom dress in Red
FALLON Satin Diamante Corset Bustier Mermaid Prom Dress Sale priceFrom $440.95 AUD Regular price$629.95 AUD
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AVAILABLE IN-STOREREADY TO SHIPCALLIE lace bustier corset style prom dress in Red
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AVAILABLE IN-STOREREADY TO SHIPOn saleBLAKE sequin strapless corset bustier mermaid formal dress in Royal
BLAKE Sequin Strapless Corset Bustier Mermaid Formal Dress Sale priceFrom $440.95 AUD Regular price$629.95 AUD
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ASHLYN strapless satin beaded cut out mermaid formal dress
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Sold outASHLEY plunging sequin lace low back mermaid prom dress in Gold
AVAILABLE IN-STOREOn saleADRIA strapless sweetheart metallic shimmer mermaid prom dress in Silver
ADRIA Strapless Sweetheart Metallic Shimmer Mermaid Prom Dress Sale priceFrom $99.00 AUD Regular price$629.95 AUD
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Sold outALEYANDRA V-neck beaded sequin lace-up mermaid prom dress in Champagne
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AVAILABLE IN-STOREREADY TO SHIP SIZESJOYCE glitter corset bustier mermaid semi formal dress in Red
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JEM strapless satin diamanté detail corset bustier formal dress
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JAZMIN Ruched Deep V Back Bum Scrunch Formal Dress in Australia | One Honey Boutique
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AVAILABLE IN-STOREREADY TO SHIPJAZ glitter shimmer strappy back mermaid prom dress
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AVAILABLE IN-STOREREADY TO SHIP SIZESERIKA glitter stretch satin corset back fitted prom dress in Fuchsia
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CYRUS Bum Scrunch Neon Low Back Mermaid Formal Dress in Australia | One Honey Boutique
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AVAILABLE IN-STOREREADY TO SHIP SIZESCOVE diamante bustier ruched satin prom dress
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AVAILABLE IN-STOREHoney Couture AISHA Low Back Mermaid Evening Gown Dress in Australia | One Honey Boutique
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AVAILABLE IN-STOREREADY TO SHIPHoney Couture MIA Sequin Open Back Formal Gown in Australia | One Honey Boutique
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Sold outSave 0%Honey Couture TILDA Low Back Sequin Formal Gown Dress in Australia | One Honey Boutique
Honey Couture TILDA Low Back Sequin Formal Gown Dress Sale priceFrom $99.00 AUD Regular price$495.95 AUD
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AVAILABLE IN-STOREREADY TO SHIP SIZESCHRISTINA off shoulder glitter mermaid prom dress with gloves in Royal Blue
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AVAILABLE IN-STOREREADY TO SHIP SIZESLIZZO strapless velvet corset mermaid formal dress with gloves in Royal Blue
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AVAILABLE IN-STOREREADY TO SHIPBALENCI-USSY one shoulder stretch satin mermaid prom dress with gloves in Fuchsia
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Mermaid Formal Dresses Australia

✨ NEED HELP CHOOSING YOUR DRESS? ✨

Need help with sizing, delivery, ordering or planning for your event? Visit our Help Centre to shop with confidence — explore sizing & fit advice, ordering guides, Dress Registration, Virtual Try-On, customer resources & more.