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Long Formal Party Dresses & Formal Gowns

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Ladivine KV1140 greenery off-shoulder sweetheart beaded satin fitted corset gown with high back and high slit — vibrant botanical-green plus-size full length front view of the formal wedding-guest and outdoor evening event dress with trainLadivine KV1140 greenery — rear-facing view of the high-back construction and off-shoulder beaded satin fitted gown in the vibrant botanical-green tone, perfect for garden weddings and formal outdoor events
Jessica Angel 2568 OrangeJessica Angel 2568 Orange
Jessica Angel 2568 Sale price$930 CAD
Ladivine CD788 eggplant V-neck long sleeve beaded sheath gown with illusion inset — front view evening lookLadivine CD788 black beaded long sleeve sheath — back view of the illusion inset and floor-length silhouette
Ladivine CD788 V-Neck Long Sleeve Beaded Sheath with Illusion Inset Sale price$188.06 CAD Regular price$341 CAD
Ladivine Bridal WL071 off-white nude sweetheart fitted lace gown with crisscross back and long sleeves — front viewBack view of Ladivine WL071 off-white nude lace fitted bridal gown — crisscross back and full length sleeves from behind
Portia and Scarlett PS25323 PurplePortia and Scarlett PS25323 Purple
Portia and Scarlett PS25323 Sale price$870 CAD
Jessica Angel 2599 Neon PinkJessica Angel 2599 Neon Pink
Jessica Angel 2599 Sale price$630 CAD
La Femme 33036La Femme 33036
La Femme 33036 Sale price$556 CAD
Atria 6807HAtria 6807H
Atria 6807H Sale price$645 CAD
Primavera 14108Primavera 14108
Primavera 14108 Sale price$957 CAD
Terani Couture 252GL5205Terani Couture 252GL5205
Terani Couture 252GL5205 Sale price$1,291.26 CAD
Elizabeth K GL3532 Off WhiteElizabeth K GL3532 Off White
Elizabeth K GL3532 Sale price$1,732 CAD
Mac Duggal 68002 BlackMac Duggal 68002 Black
Mac Duggal 68002 Sale price$693 CAD
Mac Duggal - 10740D Long Sleeve Embellished Dress In Neutral and SilverMac Duggal - 10740D Long Sleeve Embellished Dress In Neutral and Silver
Mac Duggal 10740 Sale price$367 CAD Regular price$722 CAD
Ieena Duggal 56073 IndigoIeena Duggal 56073 Indigo
Ieena Duggal 56073 Sale price$471 CAD
Mac Duggal 9229 Slate BlueMac Duggal 9229 Slate Blue
Mac Duggal 9229 Sale price$693 CAD
Ladivine Bridal 7435W off-white strapless sweetheart chiffon A-line wedding gown — secondary editorial angle of the simple floor-length plus-size bridal gown with trainLadivine Bridal 7435W off-white — head-on front view of the strapless sweetheart simple chiffon A-line plus-size wedding gown with floor-length train
GLS by Gloria GL3333 FuchsiaGLS by Gloria GL3333 Fuchsia
GLS by Gloria GL3333 Sale price$409 CAD Regular price$818 CAD
Portia and Scarlett PS26263Portia and Scarlett PS26263
Portia and Scarlett PS26263 Sale price$899 CAD
May Queen RQ7978 GreenMay Queen RQ7978 Green
May Queen RQ7978 Sale price$154 CAD Regular price$290 CAD
Portia and Scarlett PS25248 BlackPortia and Scarlett PS25248 Black
Portia and Scarlett PS25248 Sale price$909 CAD
Ladivine CB157 BlackLadivine CB157 Black
Ladivine CB157 Sale price$521 CAD
Elizabeth K GL3611 Light BlueElizabeth K GL3611 Light Blue
Elizabeth K GL3611 Sale price$1,554 CAD
Primavera 4502Primavera 4502
Primavera 4502 Sale price$829 CAD
GLS by Gloria GL3212 Light GreenGLS by Gloria GL3212 Light Green
GLS by Gloria GL3212 Sale price$414 CAD
Elizabeth K GL3614 ChampagneElizabeth K GL3614 Champagne
Elizabeth K GL3614 Sale price$484 CAD
May Queen RQ8138 SageMay Queen RQ8138 Sage
May Queen RQ8138 Sale price$429 CAD
Terani Couture 252E5149Terani Couture 252E5149
Terani Couture 252E5149 Sale price$1,356.64 CAD
La Femme 32579 Dark_BerryLa Femme 32579 Dark_Berry
La Femme 32579 Sale price$656 CAD
Andrea and Leo A1246 Dusty BlueAndrea and Leo A1246 Dusty Blue
Andrea and Leo A1246 Sale price$621 CAD
Clarisse 62188Clarisse 62188
Clarisse 62188 Sale price$877 CAD
Atria 7034HAtria 7034H
Atria 7034H Sale price$673 CAD
La Femme - 28033 Square Neckline Lace Embroidery Mermaid Formal Dress In BrownLa Femme - 28033 Square Neckline Lace Embroidery Mermaid Formal Dress In Blue
La Femme 28033 Sale price$656 CAD Regular price$943 CAD
Jessica Angel 2430 BlueJessica Angel 2430 Blue
Jessica Angel 2430 Sale price$615 CAD
La Femme 32943 BlackLa Femme 32943 Black
La Femme 32943 Sale price$609 CAD
Elizabeth K GL3616 Smoky BlueElizabeth K GL3616 Smoky Blue
Elizabeth K GL3616 Sale price$414 CAD
Portia and Scarlett PS25217 PinkPortia and Scarlett PS25217 Gold
Portia and Scarlett PS25217 Sale price$650 CAD
Mac Duggal 11775 BlackMac Duggal 11775 Black
Mac Duggal 11775 Sale price$1,082 CAD
Mac Duggal 6023 MidnightMac Duggal 6023 Midnight
Mac Duggal 6023 Sale price$833 CAD
La Femme 30693 In PinkLa Femme 30693 In Pink
La Femme 30693 Sale price$695 CAD
Clarisse 810451 BlackClarisse 810451 Black
Clarisse 810451 Sale price$500 CAD
La Femme 29481 In BlueLa Femme 29481 In Blue
La Femme 29481 Sale price$556 CAD Regular price$667 CAD
Ladivine CZ2409 gold strapless sweetheart sequin gown with crisscross back and train — glittering metallic front view of the fitted prom and pageant formalLadivine CZ2409 gold — rear-facing view of the crisscross back straps and gold sequin train sweeping behind
Faviana S10848 OrangeFaviana S10848 Orange
Faviana S10848 Sale price$472 CAD
Jessica Angel 2502 Bright PurpleJessica Angel 2502 Bright Purple
Jessica Angel 2502 Sale price$772 CAD
Mac Duggal 2239 Slate BlueMac Duggal 2239 Slate Blue
Mac Duggal 2239 Sale price$1,082 CAD
Clarisse 811217 Light Blue OmbreClarisse 811217 Light Blue Ombre
Clarisse 811217 Sale price$851 CAD
Clarisse 62208Clarisse 62208
Clarisse 62208 Sale price$804 CAD
GLS by Gloria GL3216 MagentaGLS by Gloria GL3216 Magenta
GLS by Gloria GL3216 Sale price$548 CAD Regular price$1,095 CAD

2026 Long Formal Party Dresses & Formal Prom Gowns
Check out our 2026 formal evening dress collection for your next prom, military ball, black tie wedding, or any other special occasion. Formal dresses are generally long and have elegant detailing such as sequin beading, embroidery, or flowy metallic. For an elegant and chic look, try a simple long, off shoulder dress with a flowy chiffon skirt. If you are looking for something sleek and sexy, try a fitted evening dress with a high slit and open back or a mermaid skirt with a plunging v neckline. If you need a sensational gown or a winter formal dress for your special occasion then browse through our collection and find your favorite dress from one of our designers like La Femme, Mac Duggal, JOVANI, Mayqueen, LaDivine and so many more! We also carry long sleeve elegant formal dresses for your next black tie event, gala, or social event. From a-line evening gowns, fit n flare, long sleeve and strapless ones, to mermaid and formal long dresses, and the classic black evening gowns, its all at MarlasFashions.com. Captivate the room in a stunning formal dress with a sweetheart neckline or off shoulder neckline in a chiffon or sexy bodycon, embroidered with sequins and jewels.

Tips on How to Find the Perfect Long Formal Dress
Here are a some tips on how to select a beautiful long formal for your next event.

Consider the Season & Venue - In the spring (outdoor settings and during daytime events): long party dresses in pastels and other bright hues look best. For evening events, celebrations in the winter, and parties at formal venues, bold colors or rich jewel tones are go-to shades for long formal dresses.

Get Inspired – Start getting ideas from Instagram and Pinterest or even check out what your favorite celebrities are wearing to their formal events this season. See flattering styles that match your personality? Then shop for formal evening dresses in similar designs to find the right one for you

Decide on Fabric and Color - Choose a formal dress in your favorite color or fabric or consider your skin tone. Then you can shop for formal evening gowns in your chosen shade or look for styles in your favorite textures. Go for a chiffon material if you like movement and a romantic look. Perhaps you like the way a long formal dress in jersey fabric hugs your curves. If you like a sparkly dress, go for a sequin dress.

Can Never go Wrong with a Black Formal Dress
Keep it Classic - When in doubt, a classic black formal dress is always in style.

Follow these tips and feel confident in your formal dress!