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Formal Dresses

695 Products

Judee Midi Dress
Judee Midi Dress

One Shoulder High Side Split Dress in Wine

£89.95
Connie Midi Dress
Connie Midi Dress

Ruffle Detail Dress in Chocolate

£89.95
Visenta Midi Dress
Visenta Midi Dress

Asymmetrical Sleeve Dress in Pink

£99.95
Caterina Maxi
Caterina Maxi

Ruched Off Shoulder Mesh Dress in Wine

£89.95
Genie Maxi Dress
Genie Maxi Dress

Off The Shoulder Dress in Baby Blue

£89.95
Salome Midi Dress
Salome Midi Dress

Halter Neck Column Dress in Black

£99.95
Dara Midi Dress
Dara Midi Dress

Low Neck Sleeveless Slip Dress in Amber Floral Print

£89.95
Genie Maxi Dress
Genie Maxi Dress

Off The Shoulder Dress in Chocolate

£89.95
Indi Maxi Dress
Indi Maxi Dress

Boat Neck Bodycon Dress in Light Blue

£89.95
Larson Maxi Dress
Larson Maxi Dress

Asymmetric Tie Neck Column Dress in Chocolate

£99.95
Criselda Maxi Dress
Criselda Maxi Dress

One Shoulder Maxi Dress in Black

£89.95
Monette Midi Dress
Monette Midi Dress

One Shoulder Straight Dress in Orange

£89.95
Indi Maxi Dress
Indi Maxi Dress

Boat Neck Bodycon Dress in Lemon

£89.95
Aidia Midi Dress
Aidia Midi Dress

Off Shoulder Draped Corset Dress in Black

£89.95
Francis Maxi Dress
Francis Maxi Dress

Halter Ruched Backless Dress in Dark Chocolate

£89.95
Avery Midi Dress
Avery Midi Dress

Strapless Draped Side Split Dress in Black

£109.95
Brailey Midi Dress
Brailey Midi Dress

Thigh Split Strapless Dress in Orange & White Jacquard

£53.00
£89.95
You save 41%
Rumi Maxi Dress
Rumi Maxi Dress

Ruched Bodice Satin Dress in Chocolate

£62.00
£89.95
You save 31%
Andrina Midi Dress
Andrina Midi Dress

High Low Wrap Corset Dress in Navy

£89.95
Veronnie Midi Dress
Veronnie Midi Dress

Tucked High Neck Sleeveless Fitted Leg Split Skirt Dress in Pink

£89.95
Rania Maxi Dress
Rania Maxi Dress

Contrast Lace Bodice Bias Cowl Drop Waist Dress in Dark Pink

£43.00
£89.95
You save 52%
Blanca Midi Dress
Blanca Midi Dress

Cowl Neck Bias Cut Dress in Black Polka Dot

£62.00
£89.95
You save 31%
Almarie Midi Dress
Almarie Midi Dress

Halter Neck Mesh Dress in Red

£57.00
£89.95
You save 37%
Marcel Maxi Dress
Marcel Maxi Dress

Off Shoulder Corset High Split Dress in Wine

£109.95
Isla Maxi Dress
Isla Maxi Dress

Satin One Shoulder Side Split Dress in Lemon

£57.00
£89.95
You save 37%
Dixie Maxi Dress
Dixie Maxi Dress

Plunge Halter Low Back Dress in Cherry

£89.95
Genie Maxi Dress
Genie Maxi Dress

Off The Shoulder Dress in Black

£89.95
Almarie Midi Dress
Almarie Midi Dress
New

Halter Neck Mesh Dress in Lemon

£89.95
Andrea Maxi Dress
Andrea Maxi Dress

Lace High Neck Long Sleeve Dress in Black

£99.95
Charlita Maxi Dress
Charlita Maxi Dress

Strapless Cowl Back Satin Dress in Steel Blue

£89.95
Showing 1 - 30 of 695 Products

Formal Dresses 

Where to buy a fancy formal dress online in UK?

The Formal Dresses edit for women online at Showpo is made for every formal event moment that calls for a little extra effort, the big nights, the milestone dinners, and every “wow, you look amazing” moment in between. Whether you’re heading to a black-tie wedding, an evening ball, your Year 10 or Year 12 formal, your graduation, or even just a fancy dinner that got a little more dressy than expected, these unique women's pieces bring polish without trying too hard.

What is the formal dress code? For a wedding? How to dress for a semi-formal event?

If drama’s your thing, you’ll fall for our maxi gowns, sweeping silhouettes, luxe satin, and chiffon that moves beautifully under the gala lights. Want that perfect in-between for a party? Semi-formal Midis strike the balance between timeless and modern, made for the girl who likes a little structure with her sparkle. And when it’s time to go all out for a wedding, reach for our elegant satin or sequin formal dresses, they catch the light (and attention) from every angle. You’ll find all kinds of cuts here: halternecks, off-the-shoulder moments, strapless styles, and those one-shoulder looks that show just the right bit of skin. The colours are just as good: soft champagne, blush pink tones, deep emerald green, and classic navy blue. They all hit different once the lights go down; our unique formal and semi-formal dresses are made for evenings out.

How to style a formal dress? How to accessorise a formal dress? What to wear over a formal dress when its cold? 

Styling for an evening gala? Easy. Grab a pair of barely-there heels from our collection and a sparkly clutch or chic bag that fits the essentials: phone, lip, cards, done. Put on gold jewellery pieces if you want that warm glow; silver if you feel like looking sharper. For hair, it’s totally up to the vibe you’re going for. Soft waves give easy and romantic, and a slick bun is perfect when you’re into that clean, polished look. A touch of highlight on your cheekbones never hurts, and a red lip if you’re in the mood to go bold. Cold outside? No stress. Throw on a tailored blazer, faux fur coat or jacket, or an elegant shawl to stay warm without ruining the vibe. Structured outerwear keeps the look formal, elegant, polished, and event-ready, even when the temperature drops.

Is there free shipping in the UK? Does Showpo offer plus-size options?

Our UK girls get free shipping for carts over €150. See our shipping page for more information. Not sure about sizing? Our Size Guide is super easy to follow, and if it’s not quite right, our Returns Policy has your back, no stress. We also carry sizes 0-16, including plus sizes, so that all girls can find their perfect dress. Formal dresses don’t need to feel stiff; it’s whatever makes you feel good. You should feel like yourself, just dialled up a bit. Pick the clothes or dress you can’t stop thinking about, throw on your heels, and have a gorgeous night.