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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 XS - LDISCONTINUED FINAL SIZES AVAILABLEVISIT OUR GOLD COAST STORE TO TRY ONZIA Low Back V Front Sequin Prom & Formal Dress in Australia | One Honey Boutique
ZIA Low Back V Front Sequin Prom & Formal Dress Sale price$299.95 AUD
Color
USA SIZE 4 - 16LADA Off Shoulder Lace Beaded Bridal Wedding Dress in Australia | One Honey Boutique
LADA Off Shoulder Lace Beaded Bridal Wedding Dress Sale price$2,099.99 AUD
Color
USA SIZE 4 - 14SVETLA Strapless Floral Applique Fit & Flare Bridal Wedding Dress in Australia | One Honey Boutique
SVETLA Strapless Floral Applique Fit & Flare Bridal Wedding Dress Sale price$1,199.95 AUD
Color
NELLIE Deep V Front Silky A Line Bridesmaid Formal Dress in Australia | One Honey Boutique
NELLIE Deep V Front Silky A Line Bridesmaid Formal Dress Sale priceFrom $459.95 AUD
Color
USA SIZE 2 - 16DISCONTINUED FINAL SIZES AVAILABLEMARIKA Beaded Off the Shoulder A Line Corset Formal Dress in Australia | One Honey Boutique
MARIKA Beaded Off the Shoulder A Line Corset Formal Dress Sale priceFrom $459.95 AUD
Color
USA SIZE 2 - 14DISCONTNUED FINAL SIZES AVAILABLEKOJA Royal Blue Rhinestone Mesh Corset Mermaid Formal Gown Dress in Australia | One Honey Boutique
KOJA Royal Blue Rhinestone Mesh Corset Mermaid Formal Gown Dress Sale priceFrom $799.95 AUD
Color
USA SIZE 4 - 16DISCONTINUED FINAL SIZES AVAILABLEIN STOCK FOR IMMEDIATE SHIPPINGHARLEY Bustier Velour Corset Mermaid Formal Dress in Australia | One Honey Boutique
HARLEY Bustier Velour Corset Mermaid Formal Dress Sale priceFrom $569.95 AUD
Color
IN STOCKDISCONTINUEDSALESave 30%THEA Off The Shoulder Glitter Ball Gown Formal Dress in Australia | One Honey Boutique
THEA Off The Shoulder Glitter Ball Gown Formal Dress Sale priceFrom $559.95 AUD Regular price$799.95 AUD
Color
ROSINE Silky A Line Formal Dress in Australia | One Honey Boutique
ROSINE Silky A Line Formal Dress Sale priceFrom $649.95 AUD
Color
USA SIZE 2 - 14MONA Satin Diamanté Bra Detail Mermaid Formal Dress in Australia | One Honey Boutique
MONA Satin Diamanté Bra Detail Mermaid Formal Dress Sale price$569.95 AUD
Color
USA SIZE 2 - 16DISCONTINUED FINAL SIZES AVAILABLELARRISA Glitter 3D Flower Applique Off the Shoulder Mermaid Formal Dress in Australia | One Honey Boutique
LARRISA Glitter 3D Flower Applique Off the Shoulder Mermaid Formal Dress Sale priceFrom $799.95 AUD
Color
DISCONTINUED FINAL SIZES AVAILABLESALESave 30%JAX Sequin Corset Bustier Sequin Midi Dress in Australia | One Honey Boutique
JAX Sequin Corset Bustier Sequin Midi Dress Sale priceFrom $321.95 AUD Regular price$459.95 AUD
Color
DISCONTINUEDUSA 4-16Save 30%JAMILLA Satin Beaded Detail Corset Bustier Formal Dress in Australia | One Honey Boutique
JAMILLA Satin Beaded Detail Corset Bustier Formal Dress Sale priceFrom $482.95 AUD Regular price$689.95 AUD
Color
DISCONTINUED FINAL SIZES AVAILABLEUSA SIZE XS - 3XLINGRID Off the Shoulder Velour Mermaid Formal Dress in Australia | One Honey Boutique
INGRID Off the Shoulder Velour Mermaid Formal Dress Sale priceFrom $569.95 AUD
Color
ONLINE EXCLUSIVEUSA SIZE 2 - 14DISCONTINUED FINAL SIZES AVAILABLEFENTY Neon Green Satin Beaded Detail Corset Bustier Formal Dress in Australia | One Honey Boutique
FENTY Neon Green Satin Beaded Detail Corset Bustier Formal Dress Sale priceFrom $579.95 AUD
Color
IN STOCKDISCONTINUEDSALESave 30%FALLON Red Satin Diamanté Detail Corset Bustier Mermaid Formal Dress in Australia | One Honey Boutique
FALLON Red Satin Diamanté Detail Corset Bustier Mermaid Formal Dress Sale priceFrom $440.95 AUD Regular price$629.95 AUD
Color
USA SIZE 2 - 16DISCONTINUED FINAL SIZES AVAILABLEIN STOCK FOR IMMEDIATE SHIPPINGCHARLOTTE Glitter Roses Formal Ball Gown in Australia | One Honey Boutique
CHARLOTTE Glitter Roses Formal Ball Gown Sale price$799.95 AUD
Color
CARMEN Lace Applique Chiffon Bridesmaid Formal Dress in Australia | One Honey Boutique
CARMEN Lace Applique Chiffon Bridesmaid Formal Dress Sale priceFrom $659.95 AUD
Color
USA SIZE S - LIN STOCK FOR IMMEDIATE SHIPPINGDISCONTINUEDCAPREE Silky Multi Wear Tie Up Bridesmaid Dress in Australia | One Honey Boutique
CAPREE Silky Multi Wear Tie Up Bridesmaid Dress Sale price$429.95 AUD
Color
DISCONTINUED FINAL SIZES AVAILABLEUSA SIZE XS - 3XLCALLIE Lace Bustier Corset Style Formal Dress in Australia | One Honey Boutique
CALLIE Lace Bustier Corset Style Formal Dress Sale price$569.95 AUD
Color
IN STOCKDISCONTINUEDSALEOn saleBLAKE Royal Sequin Strapless Corset Bustier Mermaid Formal Dress in Australia | One Honey Boutique
BLAKE Royal Sequin Strapless Corset Bustier Mermaid Formal Dress Sale priceFrom $440.95 AUD Regular price$629.95 AUD
Color
USA SIZE 2 - 16DISCONTINUED FINAL SIZES AVAILABLEASHLYN Satin Beaded Detail Cut Out Mermaid Formal Dress in Australia | One Honey Boutique
ASHLYN Satin Beaded Detail Cut Out Mermaid Formal Dress Sale price$649.95 AUD
Color
USA SIZE 2 - 8DISCONTINUED FINAL SIZES AVAILABLEIN STOCK FOR IMMEDIATE SHIPPINGASHLEY Gold Sequin w Lace Low Back Mermaid Formal Dress in Australia | One Honey Boutique
ASHLEY Gold Sequin w Lace Low Back Mermaid Formal Dress Sale price$699.95 AUD
Color
VISIT OUR GOLD COAST STORE TO TRY ONUSA SIZE XS - 4XLSALEDISCONTINUEDSave 50%ALLEGRA Off The Shoulder Sequin Lace Up Formal Dress in Australia | One Honey Boutique
ALLEGRA Off The Shoulder Sequin Lace Up Formal Dress Sale priceFrom $314.95 AUD Regular price$629.95 AUD
Color
USA SIZE XS - 2XLDISCONTINUED FINAL SIZES AVAILABLEIN STOCK FOR IMMEDIATE SHIPPINGOn saleADRIA Shimmer Strapless Formal Gown Dress in Australia | One Honey Boutique
ADRIA Shimmer Strapless Formal Gown Dress Sale priceFrom $99.00 AUD Regular price$629.95 AUD
Color
USA SIZE 2 - 16DISCONTINUED FINAL SIZES AVAILABLEIN STOCK FOR IMMEDIATE SHIPPINGALEXANDRA Navy & Gold Glitter Ball Gown Formal Dress in Australia | One Honey Boutique
ALEXANDRA Navy & Gold Glitter Ball Gown Formal Dress Sale priceFrom $799.95 AUD
Color
USA SIZE 2 - 12DISCONTINUED FINAL SIZES AVAILABLEIN STOCK FOR IMMEDIATE SHIPPINGALEYANDRA Champagne Silver Beaded Sequin Lace Up Formal Dress in Australia | One Honey Boutique
ALEYANDRA Champagne Silver Beaded Sequin Lace Up Formal Dress Sale price$899.95 AUD
Color
DISCONTINUED FINAL SIZES AVAILABLEUSA SIZE 2 - 18JOYCE Glitter Corset Bustier Mermaid Semi Formal Dress in Australia | One Honey Boutique
JOYCE Glitter Corset Bustier Mermaid Semi Formal Dress Sale priceFrom $399.95 AUD
Color
USA SIZE 2 - 12DISCONTINUED FINAL SIZES AVAILABLEJEM Neon Strapless Satin Diamanté Detail Corset Bustier Formal Dress in Australia | One Honey Boutique
JEM Neon Strapless Satin Diamanté Detail Corset Bustier Formal Dress Sale priceFrom $549.95 AUD
Color
JAZMIN Ruched Deep V Back Bum Scrunch Formal Dress in Australia | One Honey Boutique
JAZMIN Ruched Deep V Back Bum Scrunch Formal Dress Sale priceFrom $549.95 AUD
Color
USA SIZE 2 - 16DISCONTINUED FINAL SIZES AVAILABLEJAZ Gitter Shimmer Neon Strap Back Prom Dress in Australia | One Honey Boutique
JAZ Gitter Shimmer Neon Strap Back Prom Dress Sale price$569.95 AUD
Color
USA SIZE 4 - 14DISCONTINUEDERIKA Neon Glitter Shimmer Corset Back Formal Dress in Australia | One Honey Boutique
ERIKA Neon Glitter Shimmer Corset Back Formal Dress Sale price$459.95 AUD
Color
USA SIZE 2 - 20IN STOCK FOR IMMEDIATE SHIPPINGSold outDEJA Lace Applique Corset Back Off Shoulder Ballgown in Australia | One Honey Boutique
DEJA Lace Applique Corset Back Off Shoulder Ballgown Sale priceFrom $899.95 AUD
Color
USA SIZE XS - 3XLDISCONTINUED FINAL SIZES AVAILABLEIN STOCK FOR IMMEDIATE SHIPPINGDEMIKA 3D Floral Applique Tulle Formal Gown Dress in Australia | One Honey Boutique
DEMIKA 3D Floral Applique Tulle Formal Gown Dress Sale priceFrom $799.95 AUD
Color
USA SIZE 2 - 10DISCONTINUED FINAL SIZES AVAILABLEIN STOCK FOR IMMEDIATE SHIPPINGDAKOTA Neon Sequin Lace Applique Leg Split Mermaid Formal Dress in Australia | One Honey Boutique
DAKOTA Neon Sequin Lace Applique Leg Split Mermaid Formal Dress Sale priceFrom $729.95 AUD
Color
USA SIZE XS - LCYRUS Bum Scrunch Neon Low Back Mermaid Formal Dress in Australia | One Honey Boutique
CYRUS Bum Scrunch Neon Low Back Mermaid Formal Dress Sale price$349.95 AUD
Color
USA SIZE XS - 2XLDISCONTINUED FINAL SIZES AVAILABLEIN STOCK FOR IMMEDIATE SHIPPINGCOVE Diamante Bustier Ruched Prom & Formal Dress in Australia | One Honey Boutique
COVE Diamante Bustier Ruched Prom & Formal Dress Sale price$569.95 AUD
Color
DISCONTINUED FINAL SIZES AVAILABLEUSA SIZE 4 - 24CHARLISE A Line Diamante Sequin Ballgown Formal Dress in Australia | One Honey Boutique
CHARLISE A Line Diamante Sequin Ballgown Formal Dress Sale priceFrom $990.95 AUD
Color
USA SIZE 2 - 16DISCONTINUEDHoney Couture ENYA Glitter A Line Formal Gown in Australia | One Honey Boutique
Honey Couture ENYA Glitter A Line Formal Gown Sale priceFrom $1,200.00 AUD
Color
IN STOCKDISCONTINUEDSALESave 50%ARIANA Shimmer Off Shoulder Ballgown Formal Dress in Australia | One Honey Boutique
ARIANA Shimmer Off Shoulder Ballgown Formal Dress Sale priceFrom $399.95 AUD Regular price$799.95 AUD
Color
USA SIZE XS - XLDISCONTINUED FINAL SIZES AVAILABLEIN STOCK FOR IMMEDIATE SHIPPINGHoney Couture AISHA Low Back Mermaid Evening Gown Dress in Australia | One Honey Boutique
Honey Couture AISHA Low Back Mermaid Evening Gown Dress Sale price$549.95 AUD
Color
AUS SIZE 6 - 18DISCONTINUED FINAL SIZES AVAILABLEHoney Couture MIA Sequin Open Back Formal Gown in Australia | One Honey Boutique
Honey Couture MIA Sequin Open Back Formal Gown Sale price$549.95 AUD
Color
VISIT OUR GOLD COAST STORE TO TRY ONDISCONTINUED FINAL SIZES AVAILABLEUSA SIZE XS - XLSold outSave 0%Honey Couture TILDA Low Back Sequin Formal Gown Dress in Australia | One Honey Boutique
Honey Couture TILDA Low Back Sequin Formal Gown Dress Sale priceFrom $99.00 AUD Regular price$495.95 AUD
Color
USA SIZE 2 - 14Honey Couture PANDORA Tulle Bustier Ball Gown Formal Dress in Australia | One Honey Boutique
Honey Couture PANDORA Tulle Bustier Ball Gown Formal Dress Sale price$709.95 AUD
Color
USA SIZE 2 - 14Honey Couture ALORA Embellished Bustier Corset Satin Mermaid Formal Dress in Australia | One Honey Boutique
Honey Couture ALORA Embellished Bustier Corset Satin Mermaid Formal Dress Sale priceFrom $599.95 AUD
Color
DISCONTINUED FINAL SIZES AVAILABLEUSA SIZE 2 - 16CHRISTINA Off Shoulder Glitter Shimmer Formal Dress w Gloves in Australia | One Honey Boutique
CHRISTINA Off Shoulder Glitter Shimmer Formal Dress w Gloves Sale priceFrom $569.95 AUD
Color
USA SIZE 8 - 18ADELA Tulle Diamante Feature Romantic A Line Formal Dress in Australia | One Honey Boutique
ADELA Tulle Diamante Feature Romantic A Line Formal Dress Sale priceFrom $799.95 AUD
Color
USA SIZE 2 - 16DISCONTINUED FINAL SIZES AVAILABLEARDEN Green Tulle Layered Ball Gown Prom Dress in Australia | One Honey Boutique
ARDEN Green Tulle Layered Ball Gown Prom Dress Sale price$899.95 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 ★