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Mermaid Prom Dresses & School Formal Gowns: Embrace Elegance

Mermaid Formal Dresses Australia — Dive into drama and elegance with our trending range of mermaid-style formal gowns, loved on TikTok and red carpet events. At One Honey Boutique, enjoy a curated selection of fit‑and‑flare silhouettes, boned corsets, and thigh‑high slits in sizes 2–26 designed to highlight every curve.

Perfect for prom, Year 12 formals, and glam evenings, our mermaid gowns come in luxe fabrics like satin, sequin mesh, and stretch tulle. Influencer-approved styles feature lace‑up backs, plunging necklines, and delicate sparkle that red carpets & TikTok Reels crave.

Shop now with AfterPay, ZipPay, and LayBuy, or visit our Gold Coast showroom for a fitting. Preview your fit with our Virtual Try‑On Tool before committing.

Explore other shapes:
Strapless Formal Dresses
Two Piece Formal Sets

✔️ Sizes 2–26
✔️ Fit‑and‑flare & corset styles
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🔥 TikTok Viral Dresses from $99 in-store

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💃 School Formal Dresses Brisbane | TikTok Famous Gowns

🇦🇺 Proudly Australian Owned Since 2011

✨ Find The One With Help From Our Expert Stylists at One Honey

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USA SIZE XS - XLSold outModel wearing Honey Couture CHARITY red mermaid formal dress, featuring bustier bralette and cut-out waist. Australian designer prom gown.Woman in Honey Couture CHARITY red bustier bralette dress; Australian designer evening gown, prom dress.
Honey Couture CHARITY Red Bustier Bralette Cut Out Waist Mermaid Formal Dress Sale price$429.95 AUD
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USA SIZE XS - XLSold outHoney Couture ATHENA Blue Gold Sequin Cut Out Waist Formal DressHoney Couture ATHENA Blue Gold Sequin Cut Out Waist Formal Dress
Honey Couture ATHENA Blue Gold Sequin Cut Out Waist Formal Dress Sale price$459.95 AUD
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USA SIZE XS - LTwo women posing in Honey Couture dresses: white satin strapless gown and turquoise lace evening gown. Australian designer prom dresses.Woman wearing Honey Couture white satin strapless formal dress, showcasing glamorous gown from Australian Designer, perfect for prom or evening events.
Honey Couture NIKOLE White Satin Strapless Silky Formal Dress Sale priceFrom $459.95 AUD
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ONLINE EXCLUSIVEUSA SIZE 0 - 24PORTIA & SCARLETT PS22036 sequin corset mermaid gown, perfect for formal occasions, Brisbane to Gold Coast.PS22036 Cinderella Pink corset sequin mermaid gown, ideal evening dress. Available from Brisbane to Gold Coast, Australia.
Portia & Scarlett PS22036 Cinderella Pink Corset Top Sequin Mermaid Formal Gown Sale priceFrom $1,039.95 AUD
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ONLINE EXCLUSIVEUSA SIZE 0 - 24PS22036 Cinderella Blue sequin mermaid gown with corset top, perfect for formal occasions. Available from Brisbane to Gold Coast, Australia.PS22036 Cinderella Blue sequined mermaid gown with corset top, perfect for formal events. Brisbane to Gold Coast, Australia.
Portia & Scarlett PS22036 Cinderella Blue Corset Top Sequin Mermaid Formal Gown Sale priceFrom $1,039.95 AUD
Color
ONLINE EXCLUSIVEUSA SIZE 0 - 24PORTIA & SCARLETT PS21228 cobalt sequin lace formal gown with feathered train and high leg slit, evening gown, Brisbane to Gold CoastPORTIA & SCARLETT PS21228 Cobalt Sequin Lace Gown with feathered train and high leg slit, ideal for formal events. Brisbane to Gold Coast.
Portia & Scarlett PS21228 Cobalt Sequin Lace Fitted Formal Gown Sale priceFrom $1,049.95 AUD
Color
ONLINE EXCLUSIVEUSA SIZE 0 - 24PORTIA & SCARLETT PS21228 Silver sequin gown with feathered train and high leg slit, perfect formal evening wear. Brisbane to Gold Coast.PS21228 Silver Sequin Lace Gown with Feathered Train and High Leg Split, Evening Wear, Brisbane to Gold Coast
Portia & Scarlett PS21228 Silver Sequin Lace Fitted Formal Gown Sale priceFrom $1,049.95 AUD
Color
ONLINE EXCLUSIVEUSA SIZE 0 - 24PORTIA & SCARLETT PS21228 Black sequin lace fitted gown with feathered train and high leg split, evening gown. Brisbane to Gold Coast.PS21228 Black sequin lace fitted evening gown with feathered train and high leg slit, perfect for formal events. Brisbane to Gold Coast.
Portia & Scarlett PS21228 Black Sequin Lace Fitted Formal Gown Sale priceFrom $1,049.95 AUD
Color
ONLINE EXCLUSIVEUSA SIZE 0 - 24PS21228 Pink Sequin Lace Formal Gown with feathered train and high leg slit for special occasions. Brisbane to Gold Coast, Australia.PS21228 Pink Sequin Lace Fitted Formal Gown with feathered train and high leg split, perfect for special occasions. Brisbane to Gold Coast, Australia.
Portia & Scarlett PS21228 Pink Sequin Lace Fitted Formal Gown Sale priceFrom $1,049.95 AUD
Color
ONLINE EXCLUSIVEUSA SIZE 0 - 24PS21228 Red Sequin Lace Gown with Feathered Train and High Leg Split, Evening Dress. Brisbane to Gold Coast, Australia.PS21228 Red Sequin Lace Formal Gown with Feathered Train and High Leg Split, perfect for special occasions from Brisbane to Gold Coast Australia.
Portia & Scarlett PS21228 Red Sequin Lace Fitted Formal Gown Sale priceFrom $1,049.95 AUD
Color
ONLINE EXCLUSIVEUSA SIZE 0 - 18PORTIA & SCARLETT PS21228 emerald sequin lace gown with feathered train and high leg slit, perfect for formal events. Brisbane to Gold Coast.PORTIA & SCARLETT PS21228 emerald green sequin lace gown with feathered train shown in size chart next to model. Brisbane to Gold Coast, Australia.
Portia & Scarlett PS21228 Emerald Green Sequin Lace Fitted Formal Gown Sale priceFrom $1,049.95 AUD
Color
ONLINE EXCLUSIVEUSA SIZE 0 - 24PS21228 hot pink sequin lace fitted formal gown with feathered train and high leg slit evening dress Brisbane to Gold Coast, Australia.PS21228 Hot Pink Sequin Lace Gown with feathered train and high leg split, perfect formal dress. Brisbane to Gold Coast, Australia.
Portia & Scarlett PS21228 Hot Pink Sequin Lace Fitted Formal Gown Sale priceFrom $1,049.95 AUD
Color
ONLINE EXCLUSIVEUSA SIZE 0 - 24PS21208 Rose Gold Strapless Sequin Mermaid Formal Gown with hidden cups, Brisbane to Gold Coast.PORTIA & SCARLETT PS21208 Strapless sequin mermaid gown with rose gold shimmer. Evening wear for formal events. Brisbane to Gold Coast.
Portia & Scarlett PS21208 Rose Gold Strapless Sequin Mermaid Formal Gown Sale priceFrom $629.95 AUD
Color
ONLINE EXCLUSIVEUSA SIZE 0 - 24PS21208 Rose strapless sequin mermaid evening gown with iridescent sequins. Perfect formal dress from Brisbane to Gold Coast.PS21208 Rose strapless sequin mermaid gown with iridescent sequins for special occasions. Seen in Brisbane to Gold Coast, Australia.
Portia & Scarlett PS21208 Rose Strapless Sequin Mermaid Formal Gown Sale priceFrom $629.95 AUD
Color
ONLINE EXCLUSIVEUSA SIZE 0 - 24PORTIA & SCARLETT PS21208 Red sequin strapless mermaid gown with zip-up back. Ideal for formal events. Brisbane to Gold Coast, Australia.PORTIA & SCARLETT PS21208 red strapless sequin mermaid evening gown, perfect for special occasions, Brisbane to Gold Coast.
Portia & Scarlett PS21208 Red Strapless Sequin Mermaid Formal Gown Sale priceFrom $629.95 AUD
Color
ONLINE EXCLUSIVEUSA SIZE 0 - 24PORTIA & SCARLETT PS21208 Light Blue Strapless Sequin Mermaid Formal Gown, shimmering iridescent sequins, evening elegance, Brisbane to Gold Coast.PORTIA & SCARLETT PS21208 Light blue strapless sequin mermaid formal gown in elegant setting, perfect for special occasions, Brisbane to Gold Coast.
Portia & Scarlett PS21208 Light Blue Strapless Sequin Mermaid Formal Gown Sale priceFrom $629.95 AUD
Color
ONLINE EXCLUSIVEUSA SIZE 0 - 24PS21208 Hot Pink Strapless Sequin Mermaid Evening Gown with Iridescent Details, Brisbane to Gold CoastPORTIA & SCARLETT PS21208 hot pink strapless sequin mermaid gown, elegant evening dress, Brisbane to Gold Coast, Australia.
Portia & Scarlett PS21208 Hot Pink Strapless Sequin Mermaid Formal Gown Sale priceFrom $629.95 AUD
Color
ONLINE EXCLUSIVEUSA SIZE 0 - 24PORTIA & SCARLETT PS21208 Emerald green sequin mermaid gown with strapless neckline. Perfect for special occasions. Brisbane to Gold Coast.PS21208 Emerald Green Strapless Sequin Mermaid Evening Gown with iridescent detailing, perfect for formal occasions. Brisbane to Gold Coast.
Portia & Scarlett PS21208 Emerald Green Strapless Sequin Mermaid Formal Gown Sale priceFrom $629.95 AUD
Color
ONLINE EXCLUSIVEUSA SIZE 0 - 24PORTIA & SCARLETT PS21208 Cobalt strapless sequin mermaid gown, evening dress with high stretch, Brisbane to Gold Coast.PS21208 Cobalt Strapless Sequin Mermaid Formal Gown with iridescent sequins, ideal for special occasions, Brisbane to Gold Coast, Australia.
Portia & Scarlett PS21208 Cobalt Strapless Sequin Mermaid Formal Gown Sale priceFrom $629.95 AUD
Color
ONLINE EXCLUSIVEUSA SIZE 0 - 24PORTIA & SCARLETT PS21208 black strapless sequin mermaid gown, zip-up back, evening dress. Brisbane to Gold Coast, Australia.PORTIA & SCARLETT PS21208 Black Strapless Sequin Mermaid Formal Gown with zip back. Evening gown, Brisbane to Gold Coast, Australia.
Portia & Scarlett PS21208 Black Strapless Sequin Mermaid Formal Gown Sale priceFrom $629.95 AUD
Color
ONLINE EXCLUSIVEUSA SIZE 0 - 24PORTIA & SCARLETT PS21208 strapless sequin mermaid formal gown with lilac iridescent sequins, evening gown. Brisbane to Gold CoastPS21208 Strapless Sequin Mermaid Formal Gown in Lilac with Iridescent Sequins, Evening Gown Brisbane to Gold Coast, Australia
Portia & Scarlett PS21208 Lilac Purple Strapless Sequin Mermaid Formal Gown Sale priceFrom $629.95 AUD
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AUS SIZE 2 - 24TINA HOLLY COUTURE BB018F plum sequin mermaid school formal dress, sweetheart neckline, Brisbane to Gold Coast
Tina Holly Couture BB018F Plum 3D Sequin Mermaid Sweet-Heart Neckline Formal Dress Sale priceFrom $779.95 AUD
Color
AUS SIZE 2 - 24TINA HOLLY COUTURE BB018F Navy 3D Sequin Mermaid Dress, sheer off the shoulder style, perfect for school formal, Brisbane to Gold Coast.
Tina Holly Couture BB018F Navy 3D Sequin Mermaid Sweet-Heart Neckline Formal Dress Sale priceFrom $779.95 AUD
Color
AUS SIZE 2 - 24TINA HOLLY COUTURE BB018F Emerald Green 3D Sequin Mermaid Dress, Sweet-Heart Neckline, School Formal Brisbane to Gold CoastTINA HOLLY COUTURE BB018F emerald green 3D sequin mermaid dress, sheer off-shoulder style, school formal dress, Brisbane to Gold Coast
Tina Holly Couture BB018F Emerald Green 3D Sequin Mermaid Sweet-Heart Neckline Formal Dress Sale priceFrom $779.95 AUD
Color
AUS SIZE 2 - 24TINA HOLLY COUTURE BA666 wine sequin mermaid formal dress with deep V neckline, Brisbane to Gold Coast, Australia.
Tina Holly Couture BA666 Wine Sequin Overlay With A Deep V Neckline Mermaid Formal Dress Sale priceFrom $779.95 AUD
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AUS SIZE 2 - 24TINA HOLLY COUTURE BA666 Navy mermaid formal dress with deep V neckline, sequin overlay in luxe fabric, Brisbane to Gold CoastTINA HOLLY COUTURE BA666 Navy Sequin Deep V Neck Mermaid Formal Dress, elegant evening gown near piano, Brisbane to Gold Coast
Tina Holly Couture BA666 Navy Sequin Overlay With A Deep V Neckline Mermaid Formal Dress Sale priceFrom $779.95 AUD
Color
AUS SIZE 2 - 24TINA HOLLY COUTURE TW024 navy lace glitter formal dress with off-shoulder ruffle sleeves, Brisbane to Gold Coast, Australia.
Tina Holly Couture TW024 Navy Corset Lace Glitter Mermaid Formal Dress Sale priceFrom $739.95 AUD
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AUS SIZE 2 - 24TINA HOLLY COUTURE TW031 Silver Mermaid Gown with Deep V Neckline and Beaded Sequins, School Formal Dress Brisbane to Gold Coast.
Tina Holly Couture TW031 Silver Deep V Neckline With Beaded Sequins Mermaid Formal Gown Dress Sale priceFrom $679.95 AUD
Color
AUS SIZE 2 - 24TINA HOLLY COUTURE TW031 tea rose mermaid formal gown with beaded sequins and leg slit, school formal dress, Brisbane to Gold Coast
Tina Holly Couture TW031 Tea Rose Deep V Neckline With Beaded Sequins Mermaid Formal Gown Dress Sale priceFrom $679.95 AUD
Color
AUS SIZE 2 - 24TINA HOLLY COUTURE TW031 Burgundy deep V neckline mermaid gown with beaded sequins. Formal dress with leg slit. Brisbane to Gold Coast.
Tina Holly Couture TW031 Burgundy Deep V Neckline With Beaded Sequins Mermaid Formal Gown Dress Sale priceFrom $679.95 AUD
Color
AUS SIZE 2 - 24TINA HOLLY COUTURE TW031 Emerald gown with deep V neckline, 3D beaded sequins, and leg slit, formal dress Brisbane to Gold Coast.TINA HOLLY COUTURE TW031 Emerald green dress with 3D beaded sequins, deep V neckline, thigh-high slit formal gown. Brisbane to Gold Coast.
Tina Holly Couture TW031 Emerald Green Deep V Neckline With Beaded Sequins Mermaid Formal Gown Dress Sale priceFrom $679.95 AUD
Color
AUS SIZE 2 - 24TINA HOLLY COUTURE TW031 Red Deep V Sequin Mermaid Formal Gown with Leg Slit, Brisbane to Gold Coast, AustraliaTINA HOLLY COUTURE TW031 red mermaid gown with beaded sequins and lace-up back, school formal dress, Brisbane to Gold Coast
Tina Holly Couture TW031 Red Deep V Neckline With Beaded Sequins Mermaid Formal Gown Dress Sale priceFrom $679.95 AUD
Color
AUS SIZE 2 - 24TINA HOLLY COUTURE TW031 Navy gown with beaded sequins and deep V neckline. Mermaid formal dress. Brisbane to Gold Coast.TINA HOLLY COUTURE TW031 navy beaded sequin mermaid gown, lace-up back, prom dress, Brisbane to Gold Coast, Australia.
Tina Holly Couture TW031 Navy Deep V Neckline With Beaded Sequins Mermaid Formal Gown Dress Sale priceFrom $679.95 AUD
Color
AUS SIZE 2 - 24TINA HOLLY COUTURE BA666 silver sequin mermaid formal dress with deep V neckline, Brisbane to Gold Coast, AustraliaTINA HOLLY COUTURE BA666 Silver Sequin Backless Mermaid Formal Dress, Brisbane to Gold Coast, Australia
Tina Holly Couture BA666 Silver Sequin Overlay With A Deep V Neckline Mermaid Formal Dress Sale priceFrom $779.95 AUD
Color
AUS SIZE 2 - 24TINA HOLLY COUTURE TW049 navy beaded sequin mermaid formal gown with V front; perfect for bridesmaids or school formals; Brisbane to Gold CoastTINA HOLLY COUTURE TW049 navy beaded sequin mermaid gown, low back, perfect formal dress, Brisbane to Gold Coast, Australia
Tina Holly Couture Designer TW049 Navy Beaded Sequin Mermaid Formal Gown Sale priceFrom $695.95 AUD
Color
AUS SIZE 2 - 24TINA HOLLY COUTURE TW029 Steel Rose shimmer mermaid formal dress with V back and train, model standing outdoors, Brisbane to Gold Coast.TINA HOLLY COUTURE TW029 V-back mermaid formal dress with shimmer fabric, perfect for unique events. Brisbane to Gold Coast, Australia.
Tina Holly Couture TW029 Steel Rose Shimmer Mermaid Formal Dress Sale priceFrom $619.95 AUD
Color
AUS SIZE 2 - 24TINA HOLLY COUTURE TW049 red beaded sequin mermaid gown, V front, school formal dress, Brisbane to Gold Coast, AustraliaTINA HOLLY COUTURE TW049 red beaded sequin mermaid gown, V front, low back, perfect for school formal or bridesmaid, Brisbane to Gold Coast
Tina Holly Couture Designer TW049 Red Beaded Sequin Mermaid Formal Gown Sale priceFrom $695.95 AUD
Color
AUS SIZE 2 - 24TINA HOLLY COUTURE TW049 Burgundy beaded sequin mermaid formal gown with low back, perfect for school formal or bridesmaid, Brisbane to Gold Coast.TINA HOLLY COUTURE TW049 burgundy sequin mermaid formal gown, low back, mermaid train, Brisbane to Gold Coast, Australia
Tina Holly Couture Designer TW049 Burgundy Beaded Sequin Mermaid Formal Gown Sale priceFrom $695.95 AUD
Color
AUS SIZE 2 - 24TINA HOLLY COUTURE TW049 Emerald sequin mermaid gown with V front and low back, perfect school formal dress, Brisbane to Gold Coast.TINA HOLLY COUTURE TW049 Emerald sequin mermaid gown with low back, perfect school formal dress. Brisbane to Gold Coast, Australia.
Tina Holly Couture Designer TW049 Emerald Beaded Sequin Mermaid Formal Gown Sale priceFrom $695.95 AUD
Color
AUS SIZE 2 - 24TINA HOLLY COUTURE TW029 Smoke Shimmer Mermaid School Formal Dress, V Back, Thin Strap, Brisbane to Gold CoastTINA HOLLY COUTURE TW029 Smoke Shimmer V-Back Dress, Mermaid Formal Gown, Brisbane to Gold Coast, Australia
Tina Holly Couture TW029 Smoke Shimmer Mermaid Formal Dress Sale priceFrom $455.95 AUD
Color
AUS SIZE 6 - 16Woman wearing Honey Couture DITA Black Lace Up Corset Mermaid Formal Dress, Australian Designer, Prom Dresses, Evening GownModel wearing Honey Couture DITA black lace up corset mermaid formal dress, ideal for prom and evening events by Australian designer.
Honey Couture DITA Black Lace Up Corset Mermaid Formal Dress Sale price$459.95 AUD
Color
AUS SIZE 6 - 16Sold outWoman wearing Honey Couture DITA Copper Gold Lace Up Corset Mermaid Formal Dress, Australian Designer evening gown, in a well-lit room.Woman wearing Honey Couture DITA Copper Gold Lace Up Corset Mermaid Formal Dress in Australian boutique, perfect for prom or evening events.
Honey Couture DITA Copper Gold Lace Up Corset Mermaid Formal Dress Sale price$459.95 AUD
Color
USA SIZE XS - XLSold outBack view of model wearing Honey Couture VERA emerald green & black tie-up formal dress designed by Australian label. Prom and evening gown.Two women wearing elegant formal gowns, one in a black and blue peacock design and the other in a teal gown, in a fashion showroom.
Honey Couture VERA Emerald Green & Black Tie Up Formal Dress Sale price$299.95 AUD
Color
USA SIZE 4 - 16Sold outHoney Couture GLIMMER Black & Gold Sequin Glitter Formal DressHoney Couture GLIMMER Black & Gold Sequin Glitter Formal Dress
Honey Couture GLIMMER Black & Gold Sequin Glitter Formal Dress Sale priceFrom $729.95 AUD
Color
USA SIZE XS - XLSold outHoney Couture CIENNA White Silver & Black Lace Up Mermaid Formal DressHoney Couture CIENNA White Silver & Black Lace Up Mermaid Formal Dress
Honey Couture CIENNA White Silver & Black Lace Up Mermaid Formal Dress Sale price$549.95 AUD
Color
AUS SIZE 2 - 24TINA HOLLY COUTURE BB022W sequin mermaid wedding dress with detachable overlay, V neckline, Brisbane to Gold Coast, AustraliaBridal gown with dramatic train and elegant V back, fitted mermaid silhouette. Tina Holly Couture BB022W wedding dress Brisbane to Gold Coast.
Tina Holly Couture BB022W White & White Sequin Mermaid Fitted With Detachable Overlay Wedding Dress Sale priceFrom $849.95 AUD
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AUS SIZE 2 - 24TINA HOLLY COUTURE BB050 sequin embroidered mermaid wedding dress with sweetheart neckline, mesh inset - Brisbane to Gold CoastTINA HOLLY COUTURE BB050 Mermaid Wedding Dress with Sequin Embroidery, Sweetheart Neckline, White Nude, Brisbane to Gold Coast
Tina Holly Couture BB050 White & Nude Sequin Embroidered Mermaid Fitted Wedding Dress Sale priceFrom $819.95 AUD
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AUS SIZE 2 - 24TINA HOLLY COUTURE TK007W off-shoulder mermaid wedding dress with satin finish, worn by a model, Brisbane to Gold Coast.TINA HOLLY COUTURE TK007W off-white satin off-the-shoulder mermaid wedding dress with crossover sweetheart neckline, Brisbane to Gold Coast
Tina Holly Couture TK007W Off White Satin Off-the-Shoulder Mermaid Fitted Wedding Dress Sale priceFrom $749.95 AUD
Color

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Mermaid Formal Dresses Australia

Need help with your order or planning ahead for formal season? Browse our Help Centre for answers about sizing, shipping, returns, and our Dress Registration policy.

📅 New to formal shopping? Read our How to Order Your Formal Dress guide for timelines, made-to-order info, and tips to avoid last-minute stress.

💸 Shop Sale Gowns from $99

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Still unsure? Contact Us — our friendly team is here to help you shine ✨