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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
✔️ TikTok viral watches
✔️ AfterPay, ZipPay & express shipping

🔥 TikTok Viral Dresses from $99 in-store

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👗 Try-On in Our Gold Coast Showroom Petite, Standard & Curve Sizes

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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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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
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
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
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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 2 - 16Sold outHoney Couture MUSE Silver Glitter Sequin Feather Formal DressHoney Couture MUSE Silver Glitter Sequin Feather Formal Dress
Honey Couture MUSE Silver Glitter Sequin Feather Formal Dress Sale price$829.95 AUD
Color
USA SIZE S - LSold outHoney Couture MARI Green Shimmer Lace Back Formal Dress - Australian Designer Prom Evening GownHoney Couture MARI Green Shimmer Lace Formal Dress with Mermaid Train and Leg Split, designed by Australian Designer, ideal for proms.
Honey Couture MARI Green Shimmer Lace Back Bum Ruching Formal Dress Sale price$499.95 AUD
Color
USA SIZE XS - LModels showcasing Honey Couture evening gowns and velvet blazer in a formal setting, highlighting Australian Designer elegance and style.
Honey Couture ROBBIE Black Glitter Low Back Mermaid Evening Gown Dress Sale price$449.95 AUD
Color
USA SIZE 2 - 8Sold outHoney Couture CAROLINE Silver Mesh Glitter Formal Gown DressHoney Couture CAROLINE silver mesh glitter formal gown dress from Australian Designer, perfect for prom and evening occasions.
Honey Couture CAROLINE Silver Mesh Glitter Formal Gown Dress Sale price$659.95 AUD
Color
AUS SIZE 2 - 24TINA HOLLY COUTURE TW024 Lilac glitter corset mermaid dress with ruffle sleeves, formal gown Brisbane to Gold Coast, Australia
Tina Holly Couture TW024 Lilac Purple Corset Lace Glitter Mermaid Formal Dress Sale priceFrom $739.95 AUD
Color
AUS SIZE 2 - 24TINA HOLLY COUTURE TW024 plum lace glitter corset mermaid formal dress, Brisbane to Gold Coast, Australia.
Tina Holly Couture TW024 Plum Purple Corset Lace Glitter Mermaid Formal Dress Sale priceFrom $739.95 AUD
Color
AUS SIZE 2 - 24TINA HOLLY COUTURE TW024 red glitter corset mermaid formal dress with ruffle sleeves, Brisbane to Gold Coast
Tina Holly Couture TW024 Red Corset Lace Glitter Mermaid Formal Dress Sale priceFrom $739.95 AUD
Color
AUS SIZE 2 - 24TINA HOLLY COUTURE TW024 Turquoise Glitter Corset Mermaid Formal Dress, off-shoulder lace, school formal dress Brisbane to Gold Coast
Tina Holly Couture TW024 Turquoise Corset Lace Glitter Mermaid Formal Dress Sale priceFrom $739.95 AUD
Color
AUS SIZE 2 - 24TINA HOLLY COUTURE TW024 royal blue glitter corset formal dress, mermaid style, Off Shoulder Ruffle Sleeve, Brisbane to Gold CoastTINA HOLLY COUTURE TW024 glitter lace mermaid formal dress, royal blue, off-shoulder, Brisbane to Gold Coast, Australia
Tina Holly Couture TW024 Royal Blue Corset Lace Glitter Mermaid Formal Dress Sale priceFrom $739.95 AUD
Color
ONLINE EXCLUSIVEUSA SIZE 0 - 24PORTIA & SCARLETT FUFU GOWN Rose gold formal gown with ostrich feather shoulders and glitter mesh panels, evening wear, Brisbane to Gold Coast.PORTIA & SCARLETT FUFU GOWN with ostrich feather shoulders and illusion mesh panel, formal gown from Brisbane to Gold Coast, Australia.
Portia & Scarlett FUFU Rose Gold Feather Mesh Couture Beaded Formal Gown Sale priceFrom $1,399.95 AUD
Color
ONLINE EXCLUSIVEUSA SIZE 0 - 24PORTIA AND SCARLETT FUFU GOWN with black feather shoulders, illusion mesh. Formal evening gown. Brisbane to Gold Coast, Australia.PORTIA AND SCARLETT FUFU GOWN with feather shoulders and glitter mesh, evening gown. Brisbane to Gold Coast.
Portia & Scarlett FUFU Black Feather Mesh Couture Beaded Formal Gown Sale priceFrom $1,399.95 AUD
Color
ONLINE EXCLUSIVEUSA SIZE 0 - 24PORTIA AND SCARLETT FUFU GOWN with feather shoulders and bead embellishments, formal evening gown. Brisbane to Gold Coast.PORTIA & SCARLETT FUFU GOWN with iridescent beads and ostrich feathers, Illusion glitter mesh evening gown, Brisbane to Gold Coast.
Portia & Scarlett FUFU Silver Feather Mesh Couture Beaded Formal Gown Sale priceFrom $1,399.95 AUD
Color
USA SIZE S - LSold outHoney Couture MEXX Black Glitter Shimmer Lace Back Dress, Evening Gown by Australian Designer. Perfect for Prom and Formal Events.Model wearing Honey Couture MEXX Black Glitter Shimmer Lace Back Bum Ruching Formal Dress, featuring mermaid train and leg split.
Honey Couture MEXX Black Glitter Shimmer Lace Back Bum Ruching Formal Dress Sale price$439.95 AUD
Color
Sold outHoney Couture VIXEN Black & Gold Mermaid Sequin Dress for Prom by Australian Designer, featuring low back and mermaid train.Model wearing Honey Couture VIXEN Black & Gold Low Back Mermaid Sequin Formal Dress, Australian Designer, Prom Dress with leg split.
Honey Couture VIXEN Black & Gold Low Back Mermaid Sequin Formal Dress Sale price$629.95 AUD
Color
ONLINE EXCLUSIVEUSA SIZE 0 - 24PORTIA & SCARLETT FUFU GOWN features beaded illusion glitter mesh and ostrich feather shoulder, formal evening gown, Brisbane to Gold Coast.PORTIA & SCARLETT FUFU GOWN with feather accents and beaded mesh, elegant formal dress for special occasions. Brisbane to Gold Coast.
Portia & Scarlett FUFU White Feather Mesh Couture Beaded Formal Gown Sale priceFrom $1,399.95 AUD
Color
AUS SIZE 2 - 24TINA HOLLY COUTURE TW029 White musk shimmer mermaid prom gown with thin straps, V back, satin finish. Brisbane to Gold Coast, Australia.TINA HOLLY COUTURE TW029 mermaid formal dress with shimmer fabric and V back, prom gown, Brisbane to Gold Coast, Australia
Tina Holly Couture TW029 White Musk Shimmer Mermaid Formal Dress Sale priceFrom $619.95 AUD
Color
AUS SIZE 2 - 24TINA HOLLY COUTURE BB002 sequin mesh mermaid wedding dress with low back, shimmering fabric, Brisbane to Gold Coast, Australia.TINA HOLLY COUTURE BB002 Sequin Mesh Mermaid Wedding Dress with Low Back, Brisbane to Gold Coast
Tina Holly Couture BB002 White & Nude Sequin Mesh Shimmer Mermaid Wedding Dress Sale priceFrom $649.95 AUD
Color
USA SIZE 4 - 16Sold outHoney Couture GABRIELLA emerald green sequin dress with back strap, perfect for proms and formal occasions, by Australian designer.Back view of Honey Couture GABRIELLA emerald green sequin formal dress with strap detail, perfect for prom or evening. Australian designer.
Honey Couture GABRIELLA Emerald Green Sequin Strap Back Formal Dress Sale price$629.95 AUD
Color
USA SIZE 2 - 22Sold outEmerald green glitter Honey Couture PAITYN mermaid gown with lace-up back, perfect for formal occasions. Australian designer prom dress.Honey Couture PAITYN emerald green backless mermaid gown, Australian designer evening dress, sparkling prom wear with lace-up detail.
Honey Couture PAITYN Emerald Green Glitter Lace Up Back Mermaid Formal Gown Dress Sale priceFrom $659.95 AUD
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USA SIZE XS - LSold outHoney Couture LUREX turquoise sparkle mermaid evening gown with leg split, designed by Australian label for prom or formal occasions.Honey Couture LUREX Bright Green Mermaid Evening Gown, Australian Designer Prom Dress with Shimmer Fabric and Mermaid Train
Honey Couture LUREX Bright Green Sparkle Mermaid Evening Gown Dress Sale price$459.95 AUD
Color
USA SIZE XS - LSold outTwo models wearing Honey Couture LUREX burgundy sparkle mermaid evening gowns with leg splits and adjustable straps, showcasing Australian designer prom dresses.Honey Couture LUREX Burgundy Sparkle Mermaid Evening Gown with ruching, leg split, from Australian Designer. Perfect prom dress option.
Honey Couture LUREX Burgundy Sparkle Mermaid Evening Gown Dress Sale price$459.95 AUD
Color
USA SIZE S - XLHoney Couture HIVE Nude & Gold Sequin Formal Gown - Elegant evening dress by Australian Designer, perfect for prom or special occasions.Honey Couture HIVE Nude & Gold Sequin Evening Gown with Leg Split, Prom Dress by Australian Designer, Affordable Formal Wear
Honey Couture HIVE Nude & Gold Sequin Formal Gown Sale price$429.95 AUD
Color
USA SIZE S - XLHoney Couture HIVE Black & Rose Gold Sequin Formal Gown by Australian Designer, featuring a leg split, glitter lace overlay, and stretch fabric. Perfect for prom or evening wear. Affordable luxury fashion.Honey Couture HIVE black and rose gold sequin gown with thigh-high slit. Australian designer, perfect for prom or evening events.
Honey Couture HIVE Black & Rose Gold Sequin Formal Gown Sale price$429.95 AUD
Color
USA SIZE XS - LSold outHoney Couture EMILYA Red Strapless Glitter Overlay Evening Gown DressHoney Couture EMILYA Red Strapless Glitter Overlay Evening Gown Dress
Honey Couture EMILYA Red Strapless Glitter Overlay Evening Gown Dress Sale price$549.95 AUD
Color
USA SIZE XS - LSold outHoney Couture MARIANA Emerald Green Low Back Mermaid Evening Gown DressHoney Couture MARIANA Emerald Green Low Back Mermaid Evening Gown Dress
Honey Couture MARIANA Emerald Green Low Back Mermaid Evening Gown Dress Sale price$549.95 AUD
Color
USA SIZE XS - LSold outHoney Couture ETTA Gold Lace & Glitter Overlay Mermaid Formal Gown Dress {vendor} AfterPay Humm ZipPay LayBuy SezzleHoney Couture ETTA Gold Lace & Glitter Overlay Mermaid Formal Gown Dress {vendor} AfterPay Humm ZipPay LayBuy Sezzle
Honey Couture ETTA Gold Lace & Glitter Overlay Mermaid Formal Gown Dress Sale price$549.95 AUD
Color
USA SIZE XS - XLSold outHoney Couture SARAI Red Glitter Mermaid Evening Gown DressHoney Couture SARAI Red Glitter Mermaid Evening Gown Dress
Honey Couture SARAI Red Glitter Mermaid Evening Gown Dress Sale price$519.95 AUD
Color
USA SIZE XS - LSold outHoney Couture DESTINY Silver Sequin Ruffle Strapless Formal Gown Dress {vendor} AfterPay Humm ZipPay LayBuy SezzleHoney Couture DESTINY Silver Sequin Ruffle Strapless Formal Gown Dress {vendor} AfterPay Humm ZipPay LayBuy Sezzle
Honey Couture DESTINY Silver Sequin Ruffle Strapless Formal Gown Dress Sale price$520.00 AUD
Color
USA SIZE XS - XLSold outModel wearing Honey Couture LUREX Emerald Green Sparkle Mermaid Evening Gown, an Australian Designer prom dress with leg split and tummy ruching.Honey Couture LUREX Emerald Green Mermaid Evening Gown, perfect for prom or special occasions, by Australian Designer. Affordable elegance.
Honey Couture LUREX Emerald Green Sparkle Mermaid Evening Gown Dress Sale price$459.95 AUD
Color
USA SIZE XS - 3XLWoman wearing Honey Couture LUREX Black Sparkle Mermaid Evening Gown with leg split, from Australian Designer, ideal for prom or formal events.Honey Couture LUREX black sparkle mermaid evening gown with leg split, V front, and ruching. Australian designer prom dress.
Honey Couture LUREX Black Sparkle Mermaid Evening Gown Dress Sale priceFrom $459.95 AUD
Color
USA SIZE XS - 3XLModel wearing Honey Couture LUREX Red Sparkle Mermaid Evening Gown with leg split, perfect for proms or special occasions. Australian Designer.Model wearing Honey Couture LUREX Red Sparkle Mermaid Evening Gown with mermaid train and adjustable straps from Australian Designer.
Honey Couture LUREX Red Sparkle Mermaid Evening Gown Dress Sale priceFrom $459.95 AUD
Color
USA SIZE XS - XLSold outHoney Couture KARMEL Gold Glitter Formal Dress {vendor} AfterPay Humm ZipPay LayBuy SezzleHoney Couture KARMEL Gold Glitter Formal Dress {vendor} AfterPay Humm ZipPay LayBuy Sezzle
Honey Couture KARMEL Gold Glitter Formal Dress Sale price$499.95 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 ✨