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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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AUS SIZE 2 - 24Tina Holly Couture TW030 Black and Nude Gala A Line Formal Dress in Australia | One Honey Boutique
Tina Holly Couture TW030 Black and Nude Gala A Line Formal Dress Sale priceFrom $739.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture Designer TW049 Navy Beaded Sequin Mermaid Formal Gown in Australia | One Honey Boutique
Tina Holly Couture Designer TW049 Navy Beaded Sequin Mermaid Formal Gown Sale priceFrom $695.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture Designer TW028 White Musk Glitter Formal Dress w Over Skirt in Australia | One Honey Boutique
Tina Holly Couture Designer TW028 White Musk Glitter Formal Dress w Over Skirt Sale priceFrom $659.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture Designer TW028 Golden Rust Glitter Formal Dress w Over Skirt in Australia | One Honey Boutique
Tina Holly Couture Designer TW028 Golden Rust Glitter Formal Dress w Over Skirt Sale priceFrom $659.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture TW079 Emerald Green Crossover Plunging Neckline With Spaghetti Straps A - Line Formal Dress in Australia | One Honey Boutique
Tina Holly Couture TW079 Emerald Green Crossover Plunging Neckline With Spaghetti Straps A-Line Formal Dress Sale priceFrom $679.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture Designer TW028 Steel Rose Glitter Formal Dress w Over Skirt in Australia | One Honey Boutique
Tina Holly Couture Designer TW028 Steel Rose Glitter Formal Dress w Over Skirt Sale priceFrom $659.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture TW079 Fuchsia Berry Crossover Plunging Neckline With Spaghetti Straps A - Line Formal Dress in Australia | One Honey Boutique
Tina Holly Couture TW079 Fuchsia Berry Crossover Plunging Neckline With Spaghetti Straps A-Line Formal Dress Sale priceFrom $459.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture TW079 Golden Rust Crossover Plunging Neckline With Spaghetti Straps A - Line Formal Dress in Australia | One Honey Boutique
Tina Holly Couture TW079 Golden Rust Crossover Plunging Neckline With Spaghetti Straps A-Line Formal Dress Sale price$459.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture TW079 Aqua Crossover Plunging Neckline With Spaghetti Straps A - Line Formal Dress in Australia | One Honey Boutique
Tina Holly Couture TW079 Aqua Crossover Plunging Neckline With Spaghetti Straps A-Line Formal Dress Sale priceFrom $679.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture TW079 Lilac Crossover Plunging Neckline With Spaghetti Straps A - Line Formal Dress in Australia | One Honey Boutique
Tina Holly Couture TW079 Lilac Crossover Plunging Neckline With Spaghetti Straps A-Line Formal Dress Sale priceFrom $679.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture TW079 Indigo Crossover Plunging Neckline With Spaghetti Straps A - Line Formal Dress in Australia | One Honey Boutique
Tina Holly Couture TW079 Indigo Crossover Plunging Neckline With Spaghetti Straps A-Line Formal Dress Sale price$459.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture TW029 Steel Rose Shimmer Mermaid Formal Dress in Australia | One Honey Boutique
Tina Holly Couture TW029 Steel Rose Shimmer Mermaid Formal Dress Sale priceFrom $619.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture TW071 Pink Champagne Strapless Straight Neck With An A - Line Fit Formal Dress in Australia | One Honey Boutique
Tina Holly Couture TW071 Pink Champagne Strapless Straight Neck With An A-Line Fit Formal Dress Sale priceFrom $699.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture TW071 Pearl Pink Strapless Straight Neck With An A - Line Fit Formal Dress in Australia | One Honey Boutique
Tina Holly Couture TW071 Pearl Pink Strapless Straight Neck With An A-Line Fit Formal Dress Sale priceFrom $699.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture Designer TW049 Red Beaded Sequin Mermaid Formal Gown in Australia | One Honey Boutique
Tina Holly Couture Designer TW049 Red Beaded Sequin Mermaid Formal Gown Sale priceFrom $695.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture Designer TW049 Burgundy Beaded Sequin Mermaid Formal Gown in Australia | One Honey Boutique
Tina Holly Couture Designer TW049 Burgundy Beaded Sequin Mermaid Formal Gown Sale priceFrom $695.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture Designer TW049 Emerald Beaded Sequin Mermaid Formal Gown in Australia | One Honey Boutique
Tina Holly Couture Designer TW049 Emerald Beaded Sequin Mermaid Formal Gown Sale priceFrom $695.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture TW005 Golden Rust Deep V - Neckline and A - line With A Leg Spilt Formal Dress in Australia | One Honey Boutique
Tina Holly Couture TW005 Golden Rust Deep V-Neckline and A-line With A Leg Spilt Formal Dress Sale priceFrom $645.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture TW029 Smoke Shimmer Mermaid Formal Dress in Australia | One Honey Boutique
Tina Holly Couture TW029 Smoke Shimmer Mermaid Formal Dress Sale priceFrom $455.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture Designer TW004 Wine Lace Up Back Silky Satin Formal Gown in Australia | One Honey Boutique
Tina Holly Couture Designer TW004 Wine Lace Up Back Silky Satin Formal Gown Sale priceFrom $645.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture Designer TW004 Ice Blue Lace Up Back Silky Satin Formal Gown in Australia | One Honey Boutique
Tina Holly Couture Designer TW004 Ice Blue Lace Up Back Silky Satin Formal Gown Sale priceFrom $645.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture Designer TW004 Emerald Lace Up Back Silky Satin Formal Gown in Australia | One Honey Boutique
Tina Holly Couture Designer TW004 Emerald Lace Up Back Silky Satin Formal Gown Sale priceFrom $645.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture Designer TW004 Champagne Lace Up Back Silky Satin Formal Gown in Australia | One Honey Boutique
Tina Holly Couture Designer TW004 Champagne Lace Up Back Silky Satin Formal Gown Sale priceFrom $645.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture Designer TW004 Golden Rust Lace Up Back Silky Satin Formal Gown in Australia | One Honey Boutique
Tina Holly Couture Designer TW004 Golden Rust Lace Up Back Silky Satin Formal Gown Sale priceFrom $645.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture TW620 White Beaded & Lace With A Strapless Neckline A - line Wedding Dress in Australia | One Honey Boutique
Tina Holly Couture TW620 White Beaded & Lace With A Strapless Neckline A-line Wedding Dress Sale priceFrom $645.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture TW005 Orchid Deep V - Neckline and A - line With A Leg Spilt Formal Dress in Australia | One Honey Boutique
Tina Holly Couture TW005 Orchid Deep V-Neckline and A-line With A Leg Spilt Formal Dress Sale priceFrom $645.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture TW005 Indigo Deep V - Neckline and A - line With A Leg Spilt Formal Dress in Australia | One Honey Boutique
Tina Holly Couture TW005 Indigo Deep V-Neckline and A-line With A Leg Spilt Formal Dress Sale priceFrom $645.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture TW005 Wine Deep V - Neckline and A - line With A Leg Spilt Formal Dress in Australia | One Honey Boutique
Tina Holly Couture TW005 Wine Deep V-Neckline and A-line With A Leg Spilt Formal Dress Sale priceFrom $645.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture TW005 Red Deep V - Neckline and A - line With A Leg Spilt Formal Dress in Australia | One Honey Boutique
Tina Holly Couture TW005 Red Deep V-Neckline and A-line With A Leg Spilt Formal Dress Sale priceFrom $645.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture TW005 Pastel Blue Deep V - Neckline and A - line With A Leg Spilt Formal Dress in Australia | One Honey Boutique
Tina Holly Couture TW005 Pastel Blue Deep V-Neckline and A-line With A Leg Spilt Formal Dress Sale priceFrom $645.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture TW420 Emerald Green Deep V - Neckline and A - line With A Leg Spilt Formal Dress in Australia | One Honey Boutique
Tina Holly Couture TW420 Emerald Green Deep V-Neckline and A-line With A Leg Spilt Formal Dress Sale priceFrom $679.95 AUD
Color
AUS SIZE 6 - 16Save 30%Honey Couture DITA Black Lace Up Corset Mermaid Formal Dress in Australia | One Honey Boutique
Honey Couture DITA Black Lace Up Corset Mermaid Formal Dress Sale priceFrom $321.96 AUD Regular price$459.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture TW420 Plum Deep V - Neckline and A - line With A Leg Spilt Formal Dress in Australia | One Honey Boutique
Tina Holly Couture TW420 Plum Deep V-Neckline and A-line With A Leg Spilt Formal Dress Sale priceFrom $679.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture TW420 Metallic Rose Deep V - Neckline and A - line With A Leg Spilt Formal Dress in Australia | One Honey Boutique
Tina Holly Couture TW420 Metallic Rose Deep V-Neckline and A-line With A Leg Spilt Formal Dress Sale priceFrom $679.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture TW420 Berry Deep V - Neckline and A - line With A Leg Spilt Formal Dress in Australia | One Honey Boutique
Tina Holly Couture TW420 Berry Deep V-Neckline and A-line With A Leg Spilt Formal Dress Sale priceFrom $679.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture TW420 Indigo Deep V - Neckline and A - line With A Leg Spilt Formal Dress in Australia | One Honey Boutique
Tina Holly Couture TW420 Indigo Deep V-Neckline and A-line With A Leg Spilt Formal Dress Sale priceFrom $679.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture TW325 Ruby Red Apron Neckline and A Lace - Up Back With A - line Formal Dress in Australia | One Honey Boutique
Tina Holly Couture TW325 Ruby Red Apron Neckline and A Lace-Up Back With A-line Formal Dress Sale priceFrom $749.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture TW325 Turquoise Apron Neckline and A Lace - Up Back With A - line Formal Dress in Australia | One Honey Boutique
Tina Holly Couture TW325 Turquoise Apron Neckline and A Lace-Up Back With A-line Formal Dress Sale priceFrom $749.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture TW325 Wisteria Apron Neckline and A Lace - Up Back With A - line Formal Dress in Australia | One Honey Boutique
Tina Holly Couture TW325 Wisteria Apron Neckline and A Lace-Up Back With A-line Formal Dress Sale priceFrom $749.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture TW325 Emerald Green Apron Neckline and A Lace - Up Back With A - line Formal Dress in Australia | One Honey Boutique
Tina Holly Couture TW325 Emerald Green Apron Neckline and A Lace-Up Back With A-line Formal Dress Sale priceFrom $749.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture TW070 Pearl Pink Deep V Front Fitted Bodice With A - line Formal Dress in Australia | One Honey Boutique
Tina Holly Couture TW070 Pearl Pink Deep V Front Fitted Bodice With A-line Formal Dress Sale priceFrom $699.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture TW070 Metal Purple Deep V Front Fitted Bodice With A - line Formal Dress in Australia | One Honey Boutique
Tina Holly Couture TW070 Metal Purple Deep V Front Fitted Bodice With A-line Formal Dress Sale priceFrom $699.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture TW019 Green & Nude Strapless Sequin With Scoop Neckline Formal Dress in Australia | One Honey Boutique
Tina Holly Couture TW019 Green & Nude Strapless Sequin With Scoop Neckline Formal Dress Sale priceFrom $645.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture TW019 Berry & Nude Strapless Sequin With Scoop Neckline Formal Dress in Australia | One Honey Boutique
Tina Holly Couture TW019 Berry & Nude Strapless Sequin With Scoop Neckline Formal Dress Sale priceFrom $645.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture TW019 Navy & Nude Strapless Sequin With Scoop Neckline Formal Dress in Australia | One Honey Boutique
Tina Holly Couture TW019 Navy & Nude Strapless Sequin With Scoop Neckline Formal Dress Sale priceFrom $645.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture TK333 Ruby Red With Asymmetrical Neckline And A Side Slit Formal Dress in Australia | One Honey Boutique
Tina Holly Couture TK333 Ruby Red With Asymmetrical Neckline And A Side Slit Formal Dress Sale priceFrom $899.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture TK333 Mauve Pink With Asymmetrical Neckline And A Side Slit Formal Dress in Australia | One Honey Boutique
Tina Holly Couture TK333 Mauve Pink With Asymmetrical Neckline And A Side Slit Formal Dress Sale priceFrom $899.95 AUD
Color
AUS SIZE 2 - 24Tina Holly Couture TW101 Off White Sweetheart Off - Shoulder Neckline A - line Wedding Dress in Australia | One Honey Boutique
Tina Holly Couture TW101 Off White Sweetheart Off-Shoulder Neckline A-line Wedding Dress Sale priceFrom $749.95 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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Expert styling, sizing & ordering guidance

PAY YOUR WAY

Afterpay, Zip & Laybuy available

TRUSTED SINCE 2011

Rated 4.9★ on Google 1000+ verified reviews

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Australia’s Highest-Rated Formalwear Boutique

1000+ verified Google reviews • Rated 4.9 ★