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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 EXCLUSIVEEURO SIZE S - XLMINNA Fashion HADES Black Sequin Beaded Strapless Mermaid Formal Dress in Australia | One Honey Boutique
ONLINE EXCLUSIVEEURO SIZE S - XLMINNA Fashion LÉONIE Red Sequin Beaded Strapless Mermaid Formal Dress in Australia | One Honey Boutique
ONLINE EXCLUSIVEEURO SIZE S - XLMINNA Fashion ELIANA Blue Satin Off the Shoulder Long Sleeve Mermaid Formal Dress in Australia | One Honey Boutique
ONLINE EXCLUSIVEEURO SIZE S - XLMINNA Fashion AUGUSTA Pink Sequin Halter Neck Mermaid Formal Dress in Australia | One Honey Boutique
ONLINE EXCLUSIVEEURO SIZE S - LMINNA Fashion LIME SHOT Pink Silky One Shoulder Sleeve Beaded Detail Mermaid Formal Dress in Australia | One Honey Boutique
ONLINE EXCLUSIVEEURO SIZE S - LMINNA Fashion LIME SHOT Green Silky One Shoulder Sleeve Beaded Detail Mermaid Formal Dress in Australia | One Honey Boutique
ONLINE EXCLUSIVEEURO SIZE S - LMINNA Fashion IRMA Green Beaded Off The Shoulder Mermaid Formal Dress in Australia | One Honey Boutique
ONLINE EXCLUSIVEEURO SIZE S - LMINNA Fashion IRMA Mint Beaded Off The Shoulder Mermaid Formal Dress in Australia | One Honey Boutique
ONLINE EXCLUSIVEEURO SIZE S - LMINNA Fashion IRMA Purple Beaded Off The Shoulder Mermaid Formal Dress in Australia | One Honey Boutique
ONLINE EXCLUSIVEEURO SIZE S - LMINNA Fashion IRMA Yellow Beaded Off The Shoulder Mermaid Formal Dress in Australia | One Honey Boutique
ONLINE EXCLUSIVEEURO SIZE S - LMINNA Fashion IRMA Red Beaded Off The Shoulder Mermaid Formal Dress in Australia | One Honey Boutique
ONLINE EXCLUSIVEEURO SIZE S - LMINNA Fashion IRMA Black Beaded Off The Shoulder Mermaid Formal Dress in Australia | One Honey Boutique
ONLINE EXCLUSIVEEURO SIZE S - LMINNA Fashion VITTORIA Blue Silky Deep V Corset Back Mermaid Formal Dress in Australia | One Honey Boutique
ONLINE EXCLUSIVEEURO SIZE S - LMINNA Fashion VITTORIA Black Silky Deep V Corset Back Mermaid Formal Dress in Australia | One Honey Boutique
ONLINE EXCLUSIVEEURO SIZE S - XLMINNA Fashion JESS Pink Silky Asymmetric Sweetheart Neckline Mermaid Formal Dress in Australia | One Honey Boutique
ONLINE EXCLUSIVEEURO SIZE XS - XLMINNA Fashion IRENA Green Silky Beaded Detail Mermaid Formal Dress in Australia | One Honey Boutique
ONLINE EXCLUSIVEEURO SIZE XS - XLMINNA Fashion IRENA Red Silky Beaded Detail Mermaid Formal Dress in Australia | One Honey Boutique
ONLINE EXCLUSIVEEURO SIZE XS - XLMINNA Fashion IRENA Black Silky Beaded Detail Mermaid Formal Dress in Australia | One Honey Boutique
ONLINE EXCLUSIVEEURO SIZE S - XLMINNA Fashion ALLEGRA Black Silky Halter Neck Beaded Detail Mermaid Formal Dress in Australia | One Honey Boutique
ONLINE EXCLUSIVEEURO SIZE S - XLMINNA Fashion ELLIE Pink Silky One Sleeve Beaded Applique Mermaid Formal Dress in Australia | One Honey Boutique
ONLINE EXCLUSIVEEURO SIZE XS - XLMINNA Fashion ENORA Purple Sequin and Beaded One Shoulder Sweetheart Mermaid Formal Dress in Australia | One Honey Boutique
ONLINE EXCLUSIVEEURO SIZE XS - XLMINNA Fashion MONNA Green Silky Sweetheart Train Mermaid Formal Dress in Australia | One Honey Boutique
ONLINE EXCLUSIVEEURO SIZE XS - XLMINNA Fashion MONNA Purple Silky Sweetheart Train Mermaid Formal Dress in Australia | One Honey Boutique
ONLINE EXCLUSIVEEURO SIZE S - XLMINNA Fashion ROSY Pink Silky Over Skirt Cut Out Mermaid Formal Dress in Australia | One Honey Boutique
ONLINE EXCLUSIVEEURO SIZE S - LMINNA Fashion DONATELLA Black Silky Strapless Cut Out Mermaid Formal Dress W/ Gloves in Australia | One Honey Boutique
AUS SIZE 2 - 24Tina Holly Couture TK151 Off White Satin Strapless Mermaid Bridal Formal Dress in Australia | One Honey Boutique
AUS SIZE 2 - 24Tina Holly Couture TW103 White and Nude Sequin Mermaid Bridal Formal Dress in Australia | One Honey Boutique
AUS SIZE 2 - 24Tina Holly Couture TW108 White Sequin Mermaid Bridal Formal Dress in Australia | One Honey Boutique
IN STOCKDISCONTINUEDSALESold 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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IN STOCKDISCONTINUEDSALESave 30%Honey Couture MILEE Baby Blue Low Back Mermaid Evening Gown Dress w Leg Split (RED TAG FINAL SALE) in Australia | One Honey Boutique
IN STOCKDISCONTINUEDSALESold 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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FINAL SALEIN STOCKSold outHoney Couture MARIBELLA Red Shimmer Lace Back Bum Ruching Formal Dress (RED TAG FINAL SALE) in Australia | One Honey Boutique
IN STOCKDISCONTINUED FINAL SIZES AVAILABLESALESold outOn saleISABELLA Sequin Glitter Trumpet Mermaid Formal Gown Dress in Australia | One Honey Boutique
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IN STOCKDISCONTINUEDSALESave 8%CELESTE Diamante Strap Sequin Lace Up Formal Dress in Australia | One Honey Boutique
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IN STOCKDISCONTINUEDSALESold outSave 11%Honey Couture TRISTIN Green Sequin Low Back Formal Dress (RED TAG FINAL SALE) in Australia | One Honey Boutique
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IN STOCKDISCONTINUEDSALESave 10%Honey Couture AISHA Red Low Back Mermaid Evening Gown Dress (RED TAG FINAL SALE) in Australia | One Honey Boutique
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IN STOCKDISCONTINUEDSALESold outSave 72%Honey Couture EVELYN Blue Silky Slip Formal Dress (RED TAG FINAL SALE) in Australia | One Honey Boutique
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IN STOCKDISCONTINUEDSALESave 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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IN STOCKDISCONTINUEDSALESold 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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IN STOCKDISCONTINUEDSALESave 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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IN STOCKDISCONTINUEDSALESave 30%Honey Couture MILEE Yellow Low Back Mermaid Evening Gown Dress w Leg Split (RED TAG FINAL SALE) in Australia | One Honey Boutique
IN STOCKDISCONTINUEDSALESave 11%Honey Couture IMOGEN Baby Blue Low Back Mermaid Formal Dress (RED TAG FINAL SALE) in Australia | One Honey Boutique
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IN STOCKDISCONTINUEDSALESave 11%Honey Couture JUSTICE Blue Open Back Mermaid Evening Gown Dress (RED TAG FINAL SALE) in Australia | One Honey Boutique
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IN STOCKDISCONTINUEDSALESave 19%STACY Halter Tie Up Bum Ruching Mermaid Formal Prom Dress in Australia | One Honey Boutique
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IN STOCKDISCONTINUEDSALESave 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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IN STOCKDISCONTINUEDSALESave 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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IN STOCKDISCONTINUEDSALESold outSave 11%Honey Couture STEVIE Navy Blue Stretch Satin Corset Back Mermaid Formal Dress (RED TAG FINAL SALE) in Australia | One Honey Boutique
IN STOCKDISCONTINUEDSALESave 11%Honey Couture STEVIE Green Stretch Satin Corset Back Mermaid Formal Dress (RED TAG FINAL SALE) in Australia | One Honey Boutique

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Frequently Asked Questions

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.