Semi Formal Maxi Dresses

Semi formal maxi dresses are the ultimate go-to for those moments when you want to dazzle without overdoing it. Picture yourself gliding into any event with a graceful flow and a hint of drama, all eyes on you as you make your entrance. Whether it's a romantic evening under the stars or a chic garden party, these dresses effortlessly blend elegance with a touch of laid-back charm. With a semi formal maxi dress, you're not just dressing up; you're making a statement that says, "I've arrived, and I'm ready to own this moment." So, get ready to turn heads and steal the spotlight—because why blend in when you were born to stand out?

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$19.97 $42.90 53% off

4.5 star rating

A black formal maxi dress with a cowl neckline, side ruching, and a thigh-high slit.

$49.90

4.569231 star rating

A black crepe formal dress with a sleeveless square neckline and a high-cut front slit.

$54.90

4.403509 star rating

A mauve satin maxi dress with a cowl neck, high slit, and sleek spaghetti straps.

$39.90

4 star rating

A curve-flaunting black floral mesh maxi dress with a lace-up strappy back and flared hem.

$52.90

5 star rating

A burgundy floral maxi dress featuring a draped cowl neckline, mesh-lined fabric, and a dramatic front slit.

Sale

$19.97 $89.90 78% off

4.565476 star rating

A sage satin formal dress with a pleated cowl neckline, high slit, and empire waist.

Sale

$19.97 $54.90 64% off

4.447761 star rating

A lavender mesh corset column dress featuring a sweetheart neckline and high-side slit for elegance.

$59.90

5 star rating

A denim mesh formal dress with a sweetheart neckline, lace-up back, and flattering slim silhouette.

Sale

$46 $64.90 29% off

4.578948 star rating

A black crepe formal dress with puff sleeves, lace-up back, and high-cut slit for prom.

Best Seller

$49.90

4.5 star rating

A black sequin knit maxi dress featuring a bodycon fit, low back, and high side slit.

$44.90

4.6 star rating

A shimmering gold metallic knit maxi dress with a plunge cowl halter neckline and strappy open back.

$38.90

4.5 star rating

A curve-hugging black maxi dress crafted from partially sheer mesh fabric with a sweetheart neckline.

$44.90

5 star rating

A black floral maxi dress featuring sheer mesh, a lace-up strappy back, and a form-hugging silhouette.

$44.90

5 star rating

A sultry black floral maxi dress with a V-neckline and form-hugging silhouette for vacations.

$39.90

3 star rating

A strapless black floral maxi dress crafted from mesh and knit fabric with a high side slit.

$38.90

5 star rating

An olive green maxi dress featuring a low back with tie, cowl neckline, and stretchy knit fabric.

Sale

$19.97 $59.90 67% off

3 star rating

A sultry black satin formal dress featuring a sweetheart neckline, lace bodice, and high front slit.

$69.90

4.642857 star rating

A black floor-length formal dress with a glitter mesh fabric and a chic cowl neckline.

Sale

$77 $109.90 30% off

4.657895 star rating

A green sequin scroll dress with a plunging V-neckline and open lace-up back.

Sale

$19.97 $69.90 71% off

4.772728 star rating

A lavender mesh off-the-shoulder dress with ruched seams and a mermaid silhouette for formal events.

$59.90

4.904762 star rating

A mauve knit mermaid dress featuring a cowl neck, lace-up back, and high front slit.

Sale

$19.97 $69.90 71% off

4.55 star rating

A green satin formal dress featuring a cowl neckline, high slit, and slim-fit silhouette.

Sale

$14.97 $74.90 80% off

4.8 star rating

A glamorous gold satin formal dress featuring a V-neckline, waist cutout, and high side slit.

$74.90

4.375 star rating

A stunning burgundy satin dress with a cold shoulder design and ruched mermaid silhouette.

$74.90

4.428571 star rating

A red glitter knit mermaid dress with an off-the-shoulder neckline and high front wrap slit.

Sale

$19.97 $59.90 67% off

4.714286 star rating

A sleek green formal dress with a cowl neckline, front cutout, and high side slit.

$79.90

5 star rating

A stunning white mermaid dress with faux pearl embellishments and a cold shoulder neckline.

Sale

$77 $109.90 30% off

4.461538 star rating

A royal blue mermaid dress with sequin scrolls, adjustable straps, and a high front slit.

Sale

$19.97 $79.90 75% off

4.833334 star rating

A black satin A-line formal dress featuring a chic tie-back and high front slit.

Sale

$15.97 $64.90 75% off

4.833334 star rating

A black satin slim fit dress with a square neckline and ruffled high-side slit.

$59.90

4.333334 star rating

A stunning periwinkle mesh dress with a ruched mermaid silhouette and off-the-shoulder neckline.

Sale

$15.97 $49.90 68% off

4.833334 star rating

An elegant orange mermaid dress featuring a cowl neckline and adjustable spaghetti straps in stretchy knit.

$59.90

4.6 star rating

A luxurious black velvet gown with a sweetheart neckline, sheer mesh bodice, and high wrap slit.

Sale

$19.97 $64.90 69% off

4.6 star rating

A green knit mermaid dress with a cowl neckline, spaghetti straps, and a high front slit.

$69.90

5 star rating

A blue floral crepe mermaid dress with a sweetheart neckline and high front slit.

Sale

$19.97 $69.90 71% off

4.5 star rating

An olive satin formal dress with glitter, lace-up detail, and a curve-hugging slim silhouette.

Sale

$19.97 $159.90 88% off

4.75 star rating

An ethereal green tulle formal dress with sequins, a corset bodice, and a mermaid silhouette.

$139.90

5 star rating

A light blue floral mesh dress with a sheer corset bodice and ruffled A-line silhouette.

$42.90

5 star rating

A strapless black floral mesh maxi dress with a bodycon fit and high-side slit.

$79.90

4.5 star rating

An elegant strapless mermaid dress in gold satin with a high wrap slit for formal occasions.

$59.90

4 star rating

A mauve mesh mermaid dress featuring a lace-up back, sweetheart neckline, and elegant ruching.

$89.90

3.75 star rating

A lavish rust satin formal dress with a cowl neckline, adjustable straps, and a high wrap slit.

Sale

$19.97 $69.90 71% off

5 star rating

A stunning green strapless formal dress with glitter fabric, side ruffle, and high slit.

$69.90

4.5 star rating

A luxurious denim satin formal dress featuring a cowl neckline, spaghetti straps, and a high slit.

Sale

$19.97 $39.90 50% off

4 star rating

A strapless tropical palm print maxi dress with a high side slit and form-hugging silhouette.

$34.90

5 star rating

A black rib-knit maxi dress featuring a crew neck and form-hugging, stretchy silhouette for versatile styling.

$44.90

4.666667 star rating

A sleek brown knit maxi dress with a halter cowl neckline and alluring open back.

$54.90

5 star rating

A mauve mesh and knit mermaid dress featuring an off-shoulder neckline and elegant floral print.

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Windsor Cheyenne Formal One-Shoulder Velvet Dress in Black-2
(121) 4.8099174 star rating

Lavish yourself with a luxe formal dress that elevates your special occasion outfit! Cheyenne features a one-shoulder neckline, a wired V-neck bust, a fitted long sleeve, a high side slit on the floor-length hem, and a curve-hugging A-line silhouette. The long dress is composed of a lined velvet fabric that offers a moderate stretch. Complete the look with rhinestone heels and a sphere clutch. Fit & FeaturesOne-shoulder neckline, wired V-neck bust, Fitted long sleeve, High side slit, floor-length hem, A-line silhouette, Lined velvet fabric, Form-hugging fit, moderate stretch, Strapless or sticky bra recommended, Runs true to size, Free Shipping on All Orders Over $75. | Windsor Cheyenne Formal One-Shoulder Velvet Dress in Black-2 | Size: S | Rhinestone/Velvet Fabric

Windsor Jamie Lace-Up Satin Formal Column Dress in Red
(70) 4.785714 star rating

Dare to stun in the Jamie satin formal dress crafted with silky satin fabric for a gorgeous sheen. The bold plunge halter neckline and open lace-up back will turn heads while the fitted column silhouette flaunts your curves. Fit & FeaturesSilky satin fabric, short knit stretchy lining, Plunge halter V-neckline, shoulder straps, padded bra cups, Lace-up open back, lower zipper with hook-eye closure, High side slit, Fitted column silhouette, Floor-length hem, Runs true to size, Where to Wear:Prom, weddings, galas, and black-tie soirees. Free Shipping on All Orders Over $75. | Windsor Jamie Lace-Up Satin Formal Column Dress in Red | Size: XS | Knit Fabric/Satin Fabric

Windsor Marjorie Formal Chiffon Sleeve Midi Dress in White
(42) 4.571429 star rating

Sophistication meets sultry on the Marjorie formal dress perfect for cocktail parties and dressy family get-togethers. She features sheer chiffon peasant long sleeves, a square neckline, a bodycon silhouette, and a front ruched seam leading to the skin-flaunting slit along her midi-length hem. The formal dress is composed of a lined crepe fabric with a moderate stretch. Style with a chic clutch and heels to complete the look! Fit & FeaturesSheer chiffon peasant long sleeves, square neckline, Front ruched seam, slit detail, Bodycon silhouette, Midi-length hem, Lined crepe fabric, moderate stretch, Bra-friendly design, Runs true to size, Free Shipping on All Orders Over $75. | Windsor Marjorie Formal Chiffon Sleeve Midi Dress in White | Size: S | Chiffon/Crepe Fabric

Chic Staple Ribbed Knit Skater Dress in Black
(39) 4.6923075 star rating

A chic staple skater dress featuring a flirty off-the-shoulder folded neckline and a short-length perfect for styling with boots or heels. Fit & FeaturesRibbed knit fabric with plenty of stretch, Off-the-shoulder neckline, fold-over accent, Long fitted sleeves, Short-length hem, Skater silhouette, Runs true to size, Free Shipping on All Orders Over $75. | Windsor Chic Staple Ribbed Knit Skater Dress in Black | Size: M | Knit Fabric

Gwendolyn Glitter Knit Bow-Back Mermaid Dress in Black
(36) 4.5833335 star rating

The Gwendolyn glitter knit bow-back mermaid dress will have you sparkling up the night with a glamorous allure! Make your entrance in this floor-length gown designed to turn heads with a curve-flaunting mermaid fit and backless design. Fit & FeaturesGlitter knit fabric, moderate stretch, Square neckline, spaghetti straps, Backless design, high waist seam, Bow-back accent, floor-length train, Floor-sweeping hem, mermaid silhouette, Runs true to size, Extra glitter for maximum sparkle - may have some natural fallout, Where to Wear:Weddings, black tie galas, formal dances, big birthday events, rehearsal dinners, engagement parties, red carpet occasions, upscale glam parties Free Shipping on All Orders Over $75. | Windsor Gwendolyn Glitter Knit Bow-Back Mermaid Dress in Black | Size: L | Knit Fabric

Windsor Saige Formal Sequin Lace-Up Mermaid Dress in Lavender
(34) 4.7352943 star rating

A sparkling sequin scroll pattern adds beauty and shine to the glamorous Saige formal long dress! With a lace-up back that turns heads, a curve-hugging mermaid silhouette, and a high slit for a gorgeous look. Fit & FeaturesSequin scroll pattern, mesh fabric, stretchy full knit lining, Sleeveless plunge V-neckline, padded bust, Spaghetti straps, open lace-up back detail, Back zipper and hook-eye closure, Mermaid silhouette, floor-length hem, Runs true to size, Where to Wear:Prom, black-tie events, glam functions, and parties. Free Shipping on All Orders Over $75. | Windsor Saige Formal Sequin Lace-Up Mermaid Dress in Lavender | Size: XS | Knit Fabric/Mesh Fabric/Mesh Fabric

Lucille Formal Satin Mermaid Dress in Coral
(29) 4.827586 star rating

The Lucille formal satin dress will have you looking and feeling radiant and luxe! The dress captivates with a lace-up back, mermaid silhouette, and high front slit for effortless allure. Fit & FeaturesLined satin knit fabric, minimal stretch, Sleeveless square neckline, padded bust, adjustable spaghetti straps, Open lace-up back design, zipper and hook-eye closure, Fitted bodice, front ruched seam, high-cut slit, Mermaid silhouette, floor-length hem, Runs true to size, Where to Wear:Prom, weddings, bridesmaids, black tie galas, red-carpet events, nights at the opera or theatre, big milestone celebrations Free Shipping on All Orders Over $75. | Windsor Lucille Formal Satin Mermaid Dress in Coral | Size: L | Knit Fabric/Satin Fabric

Marylou Lace Mesh Plunge Neck Formal Dress in Black
(26) 4.8076925 star rating

Bring the romantic allure to the evening affair in the Marylou lace mesh plunge formal dress! She embodies flirtatious style in a sleeveless plunge V-neckline with a built-in padded bust and adjustable spaghetti straps on her empire waist bodice. The sparkly embroidered lace mesh fabric effortlessly flows into a floor-length silhouette with a high-side slit to showcase some legs. She also features a curve-conscious silhouette to flaunt your stunning figure! Complete the look in an elegant hair clip. Fit & FeaturesPlunge V-neckline, adjustable spaghetti straps, Adhesive bra recommended, built-in padded bust, High side slit, back zipper, hook and eye closure, Empire waist, form-fitting silhouette, Floor-length hem, Sparkly embroidered lace mesh fabric, full knit lining, moderate stretch, Runs true to size, Free Shipping on All Orders Over $75. | Windsor Marylou Lace Mesh Plunge Neck Formal Dress in Black | Size: L | Knit Fabric/Mesh Fabric/Mesh Fabric

Windsor Alicia Off-The-Shoulder Mermaid Formal Dress in Green
(25) 4.84 star rating

Spend an evening in the timeless elegance of the Alicia floor-length formal dress and feel like a work of art! The side ruched seams accentuate your curves along the mermaid silhouette, and the high front slit adds a touch of drama to the floor-length hem. Fit & FeaturesSmooth knit fabric lined with stretchy knit, Padded bra cups, Back zipper and hook-eye closure, High front slit, Mermaid silhouette, Runs true to size, Where to Wear:Prom, galas, black tie parties, weddings, bridesmaids, nights at the theatre and opera, red-carpets Free Shipping on All Orders Over $75. | Windsor Alicia Off-The-Shoulder Mermaid Formal Dress in Green | Size: XS | Knit Fabric

Emmie Lace-Up Mermaid Satin Formal Dress in Brown
(22) 4.590909 star rating

Sleek and sophisticated! The Emmie satin formal dress exudes elegance with a lace-up back and flattering mermaid silhouette that accentuates your figure. Fit & FeaturesStretchy satin-knit fabric, lined bust, Spaghetti straps, V-neckline, Lace-up back, Mermaid silhouette, floor-length hem, Runs true to size, Where to Wear:Prom, black-tie galas, weddings, bridesmaids, formal parties, and red-carpet events. Free Shipping on All Orders Over $75. | Windsor Emmie Lace-Up Mermaid Satin Formal Dress in Brown | Size: L | Satin Fabric

Semi Formal Maxi Dresses

Let’s talk about the magic of the semi formal maxi dress—the ultimate bestie in your wardrobe who’s always down for a little adventure and knows how to make an entrance. Whether you’re RSVP’ing to a rooftop party, glamming up for a family celebration, or stepping out for a night with your crew, maxi semi formal dresses for women bring the drama and the elegance, all in one sweeping moment. The length alone says you’re here to serve looks, but the semi formal vibe keeps things fresh, flirty, and totally you. These dresses are for the girl who wants to turn heads without looking like she’s trying too hard, who can go from sipping mocktails to dancing under string lights without missing a beat. Picture yourself floating across the room, the hem of your dress trailing with just the right amount of attitude, the kind that makes your ex do a double-take and your besties pull you in for a selfie because you look that good. A semi formal maxi dress with sleeves? That’s the move when you want a little extra coverage without sacrificing style—think sheer mesh, delicate lace, or even bold statement sleeves that bring the drama and the comfort. It’s the perfect pick for those moments when you want to feel a little mysterious, a little regal, and a whole lot unforgettable.

Picking out the perfect Windsor semi formal dresses is all about knowing your vibe and owning it. Are you the girl who loves a little shimmer, or do you live for a classic, understated silhouette that lets your accessories do the talking? Maybe you’re shopping for your best friend’s engagement party, a cousin’s milestone birthday, or just because you want to treat yourself to a look that makes you feel unstoppable. Semi formal maxi dresses are a go-to gift for the girl who has everything but still wants one more thing to fall in love with—imagine her unwrapping a dress that’s just as bold and beautiful as she is. When you’re picking your dress, think about the little details that make you feel like the main character: a daring side slit for that hint of leg, a cinched waist to show off your curves, or a flowy skirt that makes every twirl a moment. And let’s not forget the fabric—breathable for those nights when the party doesn’t stop, with enough structure to keep you looking polished from the first photo to the last. Maxi semi formal dresses are made for every body and every mood, whether you’re keeping it classic in jewel tones or making a statement in bold prints. The real flex? You can dress them up with strappy heels and sparkly jewelry or keep it cool with sneakers and a leather jacket. It’s all about making the look your own and owning every second of it.

And if you’re feeling that urge to go even bolder, don’t sleep on the power of a classic black dress. There’s a reason it’s a forever favorite—timeless, chic, and always ready for the spotlight. For those moments when you want to channel your inner icon, check out our Black Formal Maxi Dresses collection. It’s the kind of look that never lets you down, whether you’re heading to a formal event or just want to keep things effortlessly cool. No matter the occasion, Windsor’s collection of semi formal maxi dresses is here to make sure you’re always the best-dressed girl in the room, with the confidence to match. So go ahead—pick your favorite, slip it on, and get ready to own every room you walk into.

Top Picks For Semi Formal Maxi Dresses