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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 SIZESSave 0%CELESTE diamante strap sequin lace up prom dress in Rose Gold
CELESTE Diamante Strap Sequin Lace Up Formal Dress Sale priceFrom $440.95 AUD Regular price$629.95 AUD
Color
AVAILABLE IN-STOREREADY TO SHIP SIZESBEST SELLERCECE off-shoulder satin corset bustier bridesmaid dress
Color
Save 30%SHAYLA glitter print tulle fishtail mermaid formal dress in Neon Orange
SHAYLA Glitter Print Tulle Fishtail Mermaid Formal Dress Sale priceFrom $538.95 AUD Regular price$769.95 AUD
Color
AVAILABLE IN-STOREREADY TO SHIP SIZESELEANOR strapless pointed bust satin mermaid prom dress in Red
Color
AVAILABLE IN-STOREREADY TO SHIP SIZESOn saleAMINA one shoulder glitter tulle mermaid formal dress in Royal Blue
AMINA One Shoulder Glitter Tulle Mermaid Formal Dress Sale priceFrom $687.95 AUD Regular price$859.95 AUD
Color
AVAILABLE IN-STOREREADY TO SHIP SIZESSave 30%NADINE glitter beaded sheer corset mermaid formal gown in Rose Gold
NADINE Glitter Beaded Sheer Corset Mermaid Formal Gown Sale priceFrom $487.95 AUD Regular price$695.95 AUD
Color
AVAILABLE IN-STORESave 0%PALOMA strapless glitter corset bustier mermaid prom dress
PALOMA Strapless Glitter Corset Bustier Mermaid Prom Dress Sale priceFrom $601.95 AUD Regular price$859.95 AUD
Color
AVAILABLE IN-STOREREADY TO SHIP SIZESSave 30%ISABELLA plunging sequin glitter trumpet mermaid formal gown
ISABELLA Plunging Sequin Glitter Trumpet Mermaid Formal Gown Sale priceFrom $489.95 AUD Regular price$699.95 AUD
Color
AVAILABLE IN-STOREDAYA glitter cowl neck corset mermaid prom dress in Royal Blue
Color
AVAILABLE IN-STOREREADY TO SHIP SIZESSave 0%ASTRA glitter strapless corset overskirt formal dress in Red
ASTRA Glitter Strapless Corset Overskirt Formal Dress Sale priceFrom $555.96 AUD Regular price$799.95 AUD
Color
AVAILABLE IN-STOREREADY TO SHIP SIZESSave 0%SIMMONE glitter strapless corset overskirt mermaid formal dress in Emerald
SIMMONE Glitter Strapless Corset Overskirt Formal Dress Sale priceFrom $580.95 AUD Regular price$829.95 AUD
Color
AVAILABLE IN-STOREREADY TO SHIP SIZESSave 30%SHONTAE glitter floral corset mermaid formal dress
SHONTAE Glitter Floral Corset Mermaid Formal Dress Sale price$594.95 AUD Regular price$849.95 AUD
Color
AVAILABLE IN-STOREREADY TO SHIP SIZESSave 30%VALENTINA floral lace corset mermaid bridal dress in Off White
VALENTINA Floral Lace Corset Mermaid Bridal Dress Sale priceFrom $601.95 AUD Regular price$859.95 AUD
Color
AVAILABLE IN-STOREREADY TO SHIPOn salePortia & Scarlett FUFU Black Feather Mesh Couture Beaded Formal Gown in Australia | One Honey Boutique
Portia & Scarlett FUFU Black Feather Mesh Couture Beaded Formal Gown Sale priceFrom $1,286.95 AUD Regular price$1,429.95 AUD
Color
AVAILABLE IN-STOREREADY TO SHIP SIZESSave 20%SHARYN strapless pleated satin mermaid formal dress in Ocean Blue
SHARYN Strapless Pleated Satin Mermaid Formal Dress Sale priceFrom $455.96 AUD Regular price$569.95 AUD
Color
AVAILABLE IN-STOREREADY TO SHIP SIZESOn saleFUTURA strapless satin corset bustier mermaid formal dress in Lavender
FUTURA Strapless Satin Corset Bustier Formal Dress Sale priceFrom $417.95 AUD Regular price$595.95 AUD
Color
AVAILABLE IN-STOREREADY TO SHIPTIKTOK VIRALSave 20%Honey Couture QUINN Satin Corset Mermaid Lace Up School Formal Dress in Australia | One Honey Boutique
Honey Couture QUINN Satin Corset Mermaid Lace Up School Formal Dress Sale priceFrom $455.95 AUD Regular price$569.95 AUD
Color
AVAILABLE IN-STOREREADY TO SHIP SIZESSERAFINA satin corset embellished mermaid formal dress in Red
Color
Sold outOn saleHoney Couture MYORA Embellished Bustier Satin Mermaid Formal Dress in Australia | One Honey Boutique
Honey Couture MYORA Embellished Bustier Satin Mermaid Formal Dress Sale priceFrom $99.00 AUD Regular price$599.95 AUD
Color
AVAILABLE IN-STOREREADY TO SHIP SIZESSave 0%DOJA satin diamanté detail corset bustier formal dress
DOJA Satin Diamanté Detail Corset Bustier Formal Dress Sale priceFrom $439.95 AUD Regular price$549.95 AUD
Color
AVAILABLE IN-STOREREADY TO SHIP SIZESSave 30%MALIA diamante embellished stretch glitter corset mermaid formal dress
MALIA Diamante Embellished Stretch Glitter Corset Mermaid Formal Dress Sale priceFrom $468.97 AUD Regular price$669.95 AUD
Color
AVAILABLE IN-STOREREADY TO SHIP SIZESCAROLE sequin lace corset mermaid formal dress in Royal Blue
Color
AVAILABLE IN-STOREREADY TO SHIPSave 20%RAFAELLA Crystal Diamante Bustier Corset Lace Up Back Silky Mermaid Formal Dress in Australia | One Honey Boutique
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AVAILABLE IN-STOREREADY TO SHIP SIZESDONATELLA Bustier Corset Lace Up Back Satin Mermaid Formal Dress in Australia | One Honey Boutique
Color

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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.