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Long Formal Dresses Australia – Prom & Evening Gowns

Shop long formal dresses Australia loves — discover elegant floor-length prom gowns, school formal dresses & statement eveningwear from leading Australian & international designers.

Explore long formal gowns for Year 10, Year 11 & Year 12 formals, prom, graduations, balls, black-tie events & special occasions across fitted, flowing & statement silhouettes.

From sleek satin & sculpted corsets to dramatic mermaid gowns, romantic A-line skirts & sparkling embellishment, discover a floor-length formal dress made for your moment.

Explore Long Formal Dresses

Searching for long formal dresses in Australia? One Honey Boutique curates designer floor-length formal gowns, prom dresses, school formal dresses & eveningwear for unforgettable events.

A long formal dress creates an elevated silhouette for Year 10, Year 11 & Year 12 formals, prom, graduation, university balls, galas, black-tie events, weddings & milestone celebrations.

Explore long formal gowns across fitted, mermaid, A-line, corset, strapless, backless & flowing silhouettes, with selected styles featuring satin, sequins, glitter, crystals, beading, tulle & statement embellishment.

Love a fitted floor-length silhouette? Explore our fitted formal dresses, or browse our mermaid formal dresses for sculpted gowns with dramatic skirts.

Prefer a romantic flowing gown? Discover our A-line formal dresses for elegant silhouettes, or explore our tulle formal dresses for soft layers, movement & volume.

Love a structured bodice? Browse our corset formal dresses for sculpted bodices & defined waists, or explore our strapless formal dresses for statement neckline styles.

Looking for movement & drama? Explore our leg split formal dresses for long gowns featuring statement thigh-high & side splits.

Prefer a luxe finish? Discover our satin formal dresses for smooth, luminous gowns, or browse our sequin formal dresses for high-impact sparkle.

Looking for something shorter? Explore our midi formal dresses & short formal dresses to shop formalwear by length.

Shopping for a school formal? Explore our school formal dresses Australia collection for designer Year 10, Year 11 & Year 12 gowns across colours, silhouettes & finishes.

One Honey is home to Australia's largest Dress Register, helping participating school formal customers reduce the chance of another registered One Honey customer from the same school selecting the same dress for their event.

Selected One Honey styles also offer Virtual Try-On, helping you visualise eligible long formal dresses & 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 & selected designer styles across extended size ranges.

For our complete national formalwear edit, browse formal dresses Australia for designer prom, school formal & evening dresses across lengths, colours, silhouettes & designers.

Complete your formal look with our clutch bags, formal jewellery & formal accessories.

Proudly Australian owned & trusted since 2011 with over 1,000+ 5-star reviews, One Honey Boutique is a trusted Australian destination for designer prom, school formal & occasion gowns.

Shop long formal dresses online with flexible payment options including Afterpay & Zip, with delivery available throughout Australia.

Need help choosing your size, checking availability or ordering for a fixed event date? Visit our Help Centre for sizing, availability & delivery support.

Make an unforgettable entrance — discover long formal dresses, floor-length prom gowns & designer eveningwear at One Honey Boutique.

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1628 products

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USA SIZE 4 - 18VISIT OUR GOLD COAST STORE TO TRY ONENOLA Off the Shoulder Tulle Romantic Ballgown Formal Dress in Australia | One Honey Boutique
ENOLA Off the Shoulder Tulle Romantic Ballgown Formal Dress Sale priceFrom $829.95 AUD
Color
IN STOCKDISCONTINUEDSALESave 30%ALVA Silky Lace Trim Corset Back Formal Dress in Australia | One Honey Boutique
ALVA Silky Lace Trim Corset Back Formal Dress Sale priceFrom $552.95 AUD Regular price$789.95 AUD
Color
DISCONTINUED LAST SIZES AVAILABLEUSA SIZE 2 - 16ENID Glitter Strapless Bustier Mermaid Formal Dress in Australia | One Honey Boutique
ENID Glitter Strapless Bustier Mermaid Formal Dress Sale priceFrom $769.95 AUD
Color
IN STOCKDISCONTINUEDSALESave 30%JADE Silky Satin Corset Leg Split Formal Dress in Australia | One Honey Boutique
JADE Silky Satin Corset Leg Split Formal Dress Sale priceFrom $405.95 AUD Regular price$579.95 AUD
Color
VISIT OUR GOLD COAST STORE TO TRY ONUSA SIZE 2 - 16DISCONTINUED FINAL SIZES AVAILABLEOLYMIA Embellished Bustier Stretch Glitter Satin Mermaid Formal Dress in Australia | One Honey Boutique
OLYMIA Embellished Bustier Stretch Glitter Satin Mermaid Formal Dress Sale priceFrom $689.95 AUD
Color
ONE HONEY EXCLUSIVEUSA SIZE 0 - 14Honey Couture AUGUST Strapless Embellished Bustier Satin Mermaid Formal Dress in Australia | One Honey Boutique
Honey Couture AUGUST Strapless Embellished Bustier Satin Mermaid Formal Dress Sale priceFrom $629.95 AUD
Color
USA SIZE 2 - 16DISCONTINUED FINAL SIZES AVAILABLERICHIE Sequin Mermaid Evening Gown Dress in Australia | One Honey Boutique
RICHIE Sequin Mermaid Evening Gown Dress Sale priceFrom $729.95 AUD
Color
DISCONTINUEDUSA XS-LSave 77%Honey Couture JALI Lace Back Silky Bum Ruching Formal Dress in Australia | One Honey Boutique
Honey Couture JALI Lace Back Silky Bum Ruching Formal Dress Sale priceFrom $99.00 AUD Regular price$429.95 AUD
Color
AUS SIZE 6 - 16DISCONTINUED FINAL SIZES AVAILABLEThe NIKEETA Sequin Corset Back Mermaid Formal Gown in Australia | One Honey Boutique
The NIKEETA Sequin Corset Back Mermaid Formal Gown Sale price$549.95 AUD
Color
USA SIZE 2 - 14IN STOCK FOR IMMEDIATE SHIPPINGDISCONTINUED FINAL SIZES AVAILABLECRISTELLA Crystal Shimmer Glitter Feature Corset Mermaid Formal Gown in Australia | One Honey Boutique
CRISTELLA Crystal Shimmer Glitter Feature Corset Mermaid Formal Gown Sale priceFrom $569.95 AUD
Color
USA SIZE XS - 2XLDISCONTINUEDHUNTAR Silky Ruched Front Cross Over Bust Bridesmaid Formal Dress in Australia | One Honey Boutique
HUNTAR Silky Ruched Front Cross Over Bust Bridesmaid Formal Dress Sale priceFrom $429.95 AUD
Color
IN STOCKDISCONTINUEDSALEOn saleHoney Couture MARISE Diamante Feature Mermaid Formal Dress in Australia | One Honey Boutique
Honey Couture MARISE Diamante Feature Mermaid Formal Dress Sale priceFrom $510.95 AUD Regular price$729.95 AUD
Color
USA SIZE XS - 3XLDISCONTINUED FINAL SIZES AVAILABLEHoney Couture ZURI Corset Back Ruched Waist Formal Evening Dress in Australia | One Honey Boutique
Honey Couture ZURI Corset Back Ruched Waist Formal Evening Dress Sale price$629.95 AUD
Color
USA SIZE 2 - 20DISCONTINUED FINAL SIZES AVAILABLETYRA Off - Shoulder Removable Strap Boned Corset Satin Bridesmaid Prom Dress in Australia | One Honey Boutique
TYRA Off-Shoulder Removable Strap Boned Corset Satin Bridesmaid Prom Dress Sale priceFrom $579.95 AUD
Color
IN STOCKDISCONTINUEDSALEOn saleHoney Couture ORINA Diamante V Front Leg Split Formal Dress in Australia | One Honey Boutique
Honey Couture ORINA Diamante V Front Leg Split Formal Dress Sale priceFrom $510.95 AUD Regular price$729.95 AUD
Color
DISCONTINUED FINAL SIZES AVAILABLEUSA SIZE 4 - 20SASHA Ruched Bust, Silky Satin Corset Bustier Leg Split Formal Dress in Australia | One Honey Boutique
SASHA Ruched Bust, Silky Satin Corset Bustier Leg Split Formal Dress Sale priceFrom $499.95 AUD
Color
AUS SIZE 6 - 16DISCONTINUED FINAL SIZES AVAILABLEHoney Couture CANDICE Silky Low Back Mermaid Formal Dress in Australia | One Honey Boutique
Honey Couture CANDICE Silky Low Back Mermaid Formal Dress Sale price$399.95 AUD
Color
VISIT OUR GOLD COAST STORE TO TRY ONDISCONTINUED LAST SIZES AVAILABLEAUS SIZE 6 - 16Sold outSave 83%Honey Couture MOULIN Sequin Corset Formal Dress in Australia | One Honey Boutique
Honey Couture MOULIN Sequin Corset Formal Dress Sale priceFrom $99.00 AUD Regular price$569.95 AUD
Color
VISIT OUR GOLD COAST STORE TO TRY ONDISCONTINUED LAST SIZES AVAILABLEUSA SIZE S - LSave 60%Honey Couture VANESSA Bodycon Side Split Midi Semi Formal Dress in Australia | One Honey Boutique
VANESSA Bodycon Side Split Midi Semi Formal Dress Sale priceFrom $99.00 AUD Regular price$249.95 AUD
Color
IN STOCKDISCONTINUEDSALESave 30%COCO Sash Front Low Back Bum Scrunch Mermaid Formal Gown in Australia | One Honey Boutique
COCO Sash Front Low Back Bum Scrunch Mermaid Formal Gown Sale priceFrom $440.95 AUD Regular price$629.95 AUD
Color
VISIT OUR GOLD COAST STORE TO TRY ONUSA SIZE XXS - 2XLDISCONTINUED FINAL SIZES AVAILABLEMARILYN Ruched Waist Hidden Corset Leg Split Sequin Formal Gown in Australia | One Honey Boutique
MARILYN Ruched Waist Hidden Corset Leg Split Sequin Formal Gown Sale price$649.95 AUD
Color
USA SIZE 2 - 20DISCONTINUED FINAL SIZES AVAILABLEIN STOCK FOR IMMEDIATE SHIPPINGHOLLIE A Line Glitter Effect Formal Dress in Australia | One Honey Boutique
HOLLIE A Line Glitter Effect Formal Dress Sale priceFrom $649.95 AUD
Color
AUS SIZE 6 - 18DISCONTINUED LAST SIZES AVAILABLEHoney Couture YASMIN V Front Sequin Formal Evening Gown in Australia | One Honey Boutique
Honey Couture YASMIN V Front Sequin Formal Evening Gown Sale price$620.95 AUD
Color
AUS SIZE 6 - 18DISCONTINUED LAST SIZES AVAILABLEZOE Sequin Corset Back Mermaid Formal Evening Gown in Australia | One Honey Boutique
ZOE Sequin Corset Back Mermaid Formal Evening Gown Sale price$520.00 AUD
Color
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VISIT OUR GOLD COAST STORE TO TRY ONDISCONTINUED FINAL SIZES AVAILABLEUSA SIZE XS - 3XLSave 78%Honey Couture MILEE Low Back Mermaid Evening Gown Dress with Leg Split in Australia | One Honey Boutique
Honey Couture MILEE Low Back Mermaid Evening Gown Dress with Leg Split Sale priceFrom $99.00 AUD Regular price$449.95 AUD
Color
VISIT OUR GOLD COAST STORE TO TRY ONUSA SIZE 18 - 26CURVE SIZECECE Curve Satin Off The Shoulder Corset Bustier Bridesmaid Formal Dress in Australia | One Honey Boutique
CECE Curve Satin Off The Shoulder Corset Bustier Bridesmaid Formal Dress Sale price$679.95 AUD
Color
VISIT OUR GOLD COAST STORE TO TRY ONDISCONTINUED FINAL SIZES AVAILABLEUSA SIZE XS - 3XLSave 30%Honey Couture MILEE Low Back Mermaid Evening Gown Dress in Australia | One Honey Boutique
Honey Couture MILEE Low Back Mermaid Evening Gown Dress Sale priceFrom $99.00 AUD Regular price$449.95 AUD
Color
IN STOCKDISCONTINUEDSALEOn saleHoney Couture DIAMONDS Sequin Mermaid Formal Gown Dress in Australia | One Honey Boutique
Honey Couture DIAMONDS Sequin Mermaid Formal Gown Dress Sale priceFrom $693.00 AUD Regular price$990.00 AUD
Color
IN STOCKDISCONTINUEDSALESave 30%CELESTE Diamante Strap Sequin Lace Up Formal Dress in Australia | One Honey Boutique
CELESTE Diamante Strap Sequin Lace Up Formal Dress Sale priceFrom $440.95 AUD Regular price$629.95 AUD
Color
USA SIZE 2 - 16VISIT OUR GOLD COAST STORE TO TRY ONCECE Off The Shoulder Satin Corset Bustier Bridesmaid Formal Dress in Australia | One Honey Boutique
CECE Off The Shoulder Satin Corset Bustier Bridesmaid Formal Dress Sale priceFrom $579.95 AUD
Color
IN STOCKDISCONTINUEDSALESold outSave -3%Honey Couture SHAYLA Sequin Glitter Fishtail Mermaid Formal Dress in Australia | One Honey Boutique
Honey Couture SHAYLA Sequin Glitter Fishtail Mermaid Formal Dress Sale priceFrom $538.95 AUD Regular price$769.95 AUD
Color
USA SIZE 2 - 20ELEANOR Satin Strapless Pointed Bust Strapless Silky Mermaid Formal Dress in Australia | One Honey Boutique
ELEANOR Satin Strapless Pointed Bust Strapless Silky Mermaid Formal Dress Sale price$449.95 AUD
Color
USA SIZE 2 - 16VISIT OUR GOLD COAST STORE TO TRY ONDISCONTINUEDDREYA Glitter Ball Gown School Formal Dress by Honey Couture in Australia | One Honey Boutique
DREYA Glitter Ball Gown School Formal Dress by Honey Couture Sale priceFrom $799.95 AUD
Color
USA SIZE 18 - 24CURVE SIZEDREYA Curve Corset Glitter Ball Gown School Formal Dress in Australia | One Honey Boutique
DREYA Curve Corset Glitter Ball Gown School Formal Dress Sale price$899.95 AUD
Color
IN STOCKDISCONTINUEDSALEOn saleAMINA One Shoulder Glitter Tulle Mermaid Formal Dress in Australia | One Honey Boutique
AMINA One Shoulder Glitter Tulle Mermaid Formal Dress Sale priceFrom $687.95 AUD Regular price$859.95 AUD
Color
IN STOCKDISCONTINUEDSALESave 30%NADINE Rose Gold Glitter Corset Mermaid Formal Gown Dress in Australia | One Honey Boutique
NADINE Rose Gold Glitter Corset Mermaid Formal Gown Dress Sale priceFrom $487.95 AUD Regular price$695.95 AUD
Color
IN STOCKDISCONTINUEDSALESave 30%PALOMA Strapless Glitter Corset Bustier Mermaid Glitter Dress in Australia | One Honey Boutique
PALOMA Strapless Glitter Corset Bustier Mermaid Glitter Dress Sale priceFrom $601.95 AUD Regular price$859.95 AUD
Color
IN STOCKDISCONTINUED FINAL SIZES AVAILABLESALESave 30%ISABELLA Sequin Glitter Trumpet Mermaid Formal Gown Dress in Australia | One Honey Boutique
ISABELLA Sequin Glitter Trumpet Mermaid Formal Gown Dress Sale priceFrom $489.95 AUD Regular price$699.95 AUD
Color
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USA SIZE 2 - 12VISIT OUR GOLD COAST STORE TO TRY ONDAYA Glitter Corset Bustier Mermaid Formal Gown Dress in Australia | One Honey Boutique
DAYA Glitter Corset Bustier Mermaid Formal Gown Dress Sale priceFrom $559.95 AUD
Color
IN STOCKDISCONTINUEDSALESave 21%ASTRA Glitter Strapless Corset Overskirt Formal Dress in Australia | One Honey Boutique
ASTRA Glitter Strapless Corset Overskirt Formal Dress Sale priceFrom $555.96 AUD Regular price$799.95 AUD
Color
IN STOCKDISCONTINUEDSALESave 30%SIMMONE Glitter Strapless Corset Overskirt Formal Dress in Australia | One Honey Boutique
SIMMONE Glitter Strapless Corset Overskirt Formal Dress Sale priceFrom $580.95 AUD Regular price$829.95 AUD
Color
IN STOCKDISCONTINUEDSALESave 30%SHONTAE Sequin Corset Glitter Mermaid Formal Gown Dress in Australia | One Honey Boutique
SHONTAE Sequin Corset Glitter Mermaid Formal Gown Dress Sale priceFrom $594.95 AUD Regular price$849.95 AUD
Color
IN STOCKDISCONTINUEDSALESave 30%VALENTINA Off White Sequin Corset Mermaid Formal Gown Dress in Australia | One Honey Boutique
VALENTINA Off White Sequin Corset Mermaid Formal Gown Dress Sale priceFrom $601.95 AUD Regular price$859.95 AUD
Color
IN STOCKDISCONTINUEDSALEOn 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
AUS SIZE XS - XXLVISIT OUR GOLD COAST STORE TO TRY ONSold outRunaway The Label MARGOT Bridesmaids Semi Formal Maxi Dress in Australia | One Honey Boutique
Runaway The Label MARGOT Bridesmaids Semi Formal Maxi Dress Sale price$159.95 AUD
Color
AUS SIZE XS - XXLVISIT OUR GOLD COAST STORE TO TRY ONSold outRunaway The Label DELILAH Bridesmaids Semi Formal Maxi Dress in Australia | One Honey Boutique
Runaway The Label DELILAH Bridesmaids Semi Formal Maxi Dress Sale price$159.95 AUD
Color
DISCONTINUED LAST SIZES AVAILABLEUSA SIZE XXS - 3XLSave 20%SHARYN Strapless Silky Corset Bustier Strapless Mermaid Formal Dress in Australia | One Honey Boutique
SHARYN Strapless Silky Corset Bustier Strapless Mermaid Formal Dress Sale priceFrom $455.96 AUD Regular price$569.95 AUD
Color
IN STOCKDISCONTINUED FINAL SIZES AVAILABLESALEOn saleFUTURA Strapless Satin Corset Bustier Formal Dress in Australia | One Honey Boutique
FUTURA Strapless Satin Corset Bustier Formal Dress Sale priceFrom $417.95 AUD Regular price$595.95 AUD
Color

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Long 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.

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Australia’s Highest-Rated Formalwear Boutique

1000+ verified Google reviews • Rated 4.9 ★