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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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ONLINE EXCLUSIVESHIVANI strapless crystal tulle mermaid prom dress in Silver & Nude
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AVAILABLE IN-STOREREADY TO SHIP SIZESBIJUE off-shoulder crystal corset bodice prom dress in Platinum
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AKIA satin halter neck corset waist leg split mermaid prom dress in Deep Red
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THALIA strapless lace and tulle trumpet mermaid prom dress in Champagne
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AVAILABLE IN-STOREREADY TO SHIPOn saleHoney Couture MAYA Red Glitter Mermaid Formal Gown Dress in Australia | One Honey Boutique
Honey Couture MAYA Red Glitter Mermaid Formal Gown Dress Sale priceFrom $455.95 AUD Regular price$759.95 AUD
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AVAILABLE IN-STOREREADY TO SHIPDASHA lace and glitter fishtail mermaid prom dress in Royal Blue
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LIORA Boned Bodice Lace & Beaded Applique Mermaid Wedding Dress in Australia | One Honey Boutique
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ONE HONEY EXCLUSIVESold outOCTAVIA strapless draped pearl beaded corset mermaid wedding dress in Pearl
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EVELINA floral appliqué mermaid formal dress with cape
NAOMI beaded layered tulle strapless mermaid wedding dress
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AVAILABLE IN-STOREREADY TO SHIPSave 8%JAYLA lace-up back satin mermaid formal gown
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Sold outSave 9%Honey Couture KAT Baby Blue Satin Beaded Detail Corset Bustier Formal Dress (RED TAG FINAL SALE) in Australia | One Honey Boutique
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AVAILABLE IN-STOREREADY TO SHIPSave 6%SALMA embellished bustier corset satin mermaid prom dress in Black
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AVAILABLE IN-STOREREADY TO SHIPSave 6%SALMA embellished bustier corset satin mermaid prom dress
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Sold outSave 11%Honey Couture MILEE Copper Low Back Mermaid Formal Dress (RED TAG FINAL SALE) in Australia | One Honey Boutique
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AVAILABLE IN-STOREREADY TO SHIPSave 22%ZENDAYA satin corset bustier leg split formal dress in Emerald
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AVAILABLE IN-STOREREADY TO SHIPSave 13%Honey Couture POSY Sky Blue Lace Sequin Applique Mermaid Formal Dress in Australia | One Honey Boutique
Honey Couture POSY Sky Blue Lace Sequin Applique Mermaid Formal Dress Sale priceFrom $769.95 AUD Regular price$905.95 AUD
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ONLINE EXCLUSIVEMC Chic ELAYNA Pale Blue Satin Corset Bustier Leg Split Formal Dress in Australia | One Honey Boutique
Sold outMC Chic ELAYNA Pink Satin Corset Bustier Leg Split Formal Dress in Australia | One Honey Boutique
ONLINE EXCLUSIVEMC Chic NOEMIE Champagne Satin Cross Halter Corset Bustier Leg Split Formal Dress in Australia | One Honey Boutique
ONLINE EXCLUSIVEMC Chic PRISA Peri Satin Strapless Corset Bustier Leg Split Formal Dress in Australia | One Honey Boutique
ONLINE EXCLUSIVEMC Chic ZAYDA Red Satin Corset Bustier Leg Split Formal Dress in Australia | One Honey Boutique
AVAILABLE IN-STOREREADY TO SHIP SIZESMARILYN sequin corset lace up fitted bridal dress
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AVAILABLE IN-STOREREADY TO SHIPOn saleHoney Couture MILA Blue Lace Sequin Fishtail Mermaid Formal Dress in Australia | One Honey Boutique
MILA Blue Lace Sequin Fishtail Mermaid Formal Dress Sale priceFrom $538.95 AUD Regular price$769.95 AUD
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Sold outSave 83%Honey Couture CLAUDIA Navy Sequin Mermaid Formal Gown in Australia | One Honey Boutique
Honey Couture CLAUDIA Navy Sequin Mermaid Formal Gown Sale priceFrom $99.00 AUD Regular price$569.95 AUD
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AVAILABLE IN-STOREREADY TO SHIPSave 8%FINA strapless satin diamante corset formal dress
Sold outCECE off-shoulder satin corset bustier bridal dress in Off White
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Sold outSave 78%Honey Couture MILEE Baby Pink Low Back Mermaid Evening Gown Dress (RED TAG FINAL SALE) in Australia | One Honey Boutique
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Sold outSave 30%Honey Couture MILEE Baby Blue Low Back Mermaid Evening Gown Dress w Leg Split (RED TAG FINAL SALE) in Australia | One Honey Boutique
Sold outSave 4%Honey Couture DIAMONDS White Sequin Mermaid Formal Wedding Gown Dress (RED TAG FINAL SALE) in Australia | One Honey Boutique
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Sold outHoney Couture MARIBELLA Red Shimmer Lace Back Bum Ruching Formal Dress (RED TAG FINAL SALE) in Australia | One Honey Boutique
Sold outOn saleISABELLA plunging sequin glitter trumpet mermaid formal gown in Gold
ISABELLA Gold Sequin Mermaid Formal Gown Dress (RED TAG FINAL SALE) Sale priceFrom $649.95 AUD Regular price$699.95 AUD
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AVAILABLE IN-STOREREADY TO SHIPSave 8%CELESTE diamante strap sequin lace up prom dress in Rose Gold
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Sold outSave 11%Honey Couture TRISTIN Green Sequin Low Back Formal Dress (RED TAG FINAL SALE) in Australia | One Honey Boutique
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Sold outSave 10%Honey Couture AISHA Red Low Back Mermaid Evening Gown Dress (RED TAG FINAL SALE) in Australia | One Honey Boutique
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Sold outSave 72%Honey Couture EVELYN Blue Silky Slip Formal Dress (RED TAG FINAL SALE) in Australia | One Honey Boutique
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Sold outSave 30%Honey Couture MILEE Emerald Green Low Back Mermaid Evening Gown Dress (RED TAG FINAL SALE) in Australia | One Honey Boutique
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Sold outSave 30%Honey Couture MILEE Metallic Orange Low Back Mermaid Evening Gown Dress (RED TAG FINAL SALE) in Australia | One Honey Boutique
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Sold outSave 30%Honey Couture MILEE Lilac Purple Low Back Mermaid Dress w Leg Split (RED TAG FINAL SALE) in Australia | One Honey Boutique
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Sold outSave 30%Honey Couture MILEE Yellow Low Back Mermaid Evening Gown Dress w Leg Split (RED TAG FINAL SALE) in Australia | One Honey Boutique
Sold outSave 11%Honey Couture IMOGEN Baby Blue Low Back Mermaid Formal Dress (RED TAG FINAL SALE) in Australia | One Honey Boutique
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Sold outSave 11%Honey Couture JUSTICE Blue Open Back Mermaid Evening Gown Dress (RED TAG FINAL SALE) in Australia | One Honey Boutique
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AVAILABLE IN-STOREREADY TO SHIPSave 19%STACY halter tie ruched satin mermaid prom dress
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AVAILABLE IN-STOREREADY TO SHIPSave 8%Honey Couture DANA Red Bum Ruching Cut Out Back Formal Dress (RED TAG FINAL SALE) in Australia | One Honey Boutique
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Sold outSave 8%Honey Couture COCO Emerald Green Low Back Bum Ruching Mermaid Formal Dress (RED TAG FINAL SALE) in Australia | One Honey Boutique
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Sold outSave 11%Honey Couture STEVIE Navy Blue Stretch Satin Corset Back Mermaid Formal Dress (RED TAG FINAL SALE) in Australia | One Honey Boutique
Sold outSave 11%Honey Couture STEVIE Green Stretch Satin Corset Back Mermaid Formal Dress (RED TAG FINAL SALE) in Australia | One Honey Boutique
TIKTOK VIRALSold outSave 9%Honey Couture QUINN Off White Satin Lace Up Formal Dress (RED TAG FINAL SALE) in Australia | One Honey Boutique
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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.