Formal Dresses

630 Products

Larson Maxi Dress
Larson Maxi Dress

Asymmetric Tie Neck Column Dress in Chocolate

£99.95
Judee Midi Dress
Judee Midi Dress

One Shoulder High Side Split Dress in Wine

£89.95
Roxanne Maxi Dress
Roxanne Maxi Dress

Sweetheart Neck Gathered Bodycon Dress in Red

£89.95
Indi Maxi Dress
Indi Maxi Dress

Boat Neck Bodycon Dress in Lemon

£99.95
Criselda Maxi Dress
Criselda Maxi Dress

One Shoulder Maxi Dress in Chocolate

£89.95
Evie Maxi Dress
Evie Maxi Dress

Crepe Fringed Shift Dress in Black

£89.95
Aletta Maxi Dress
Aletta Maxi Dress

Cowl Cross Back Dress in Aletta Burn Out Floral

£99.95
Belle Maxi Dress
Belle Maxi Dress

Tie Shoulder Detail Dress in Wine

£99.95
Pearce Maxi Dress
Pearce Maxi Dress

Gathered One Sleeve Bodycon Dress in Pale Pink

£99.95
Bethanie Maxi Dress
Bethanie Maxi Dress

Off The Shoulder Mesh Dress in Black

£89.95
Jocelyn Maxi Dress
Jocelyn Maxi Dress

Strapless Ruched Fit And Flare Dress in Navy

£109.95
Genie Maxi Dress
Genie Maxi Dress

Off The Shoulder Dress in Chocolate

£99.95
Salome Midi Dress
Salome Midi Dress

Halter Neck Column Dress in Wine

£99.95
Charlita Maxi Dress
Charlita Maxi Dress

Strapless Cowl Back Satin Dress in Steel Blue

£109.95
Thelma Maxi Dress
Thelma Maxi Dress

Square Neck Bodycon Dress in Wine

£89.95
Crisanta Maxi Dress
Crisanta Maxi Dress

Long Sleeve Contrast Lace Bodycon Dress in Chocolate

£99.95
Avery Midi Dress
Avery Midi Dress

Strapless Draped Side Split Dress in Pink

£109.95
Donna Maxi Dress
Donna Maxi Dress

Cowl Neck Column High Split Dress in Red

£89.95
Andrea Maxi Dress
Andrea Maxi Dress

Lace High Neck Long Sleeve Dress in Black

£99.95
Almarie Midi Dress
Almarie Midi Dress

Halter Neck Mesh Dress in Blue

£89.95
Khalani Midi Dress
Khalani Midi Dress

Deep V Neck Satin Slip Dress in Dark Olive

£89.95
Alanna Maxi Dress
Alanna Maxi Dress

Off Shoulder Ruched Mesh Dress in Chocolate

£89.95
Georgia Maxi Dress
Georgia Maxi Dress

Mesh One Shoulder Ruched Bodycon Dress in Chocolate

£79.95
Larson Maxi Dress
Larson Maxi Dress

Asymmetric Tie Neck Column Dress in Ink

£99.95
Pietra Maxi Dress
Pietra Maxi Dress

Scoop Neck Side Seam Tucks Fitted Dress in Pink

£99.95
Criselda Maxi Dress
Criselda Maxi Dress

One Shoulder Maxi Dress in Orange

£89.95
Visenta Midi Dress
Visenta Midi Dress

Asymmetrical Sleeve Dress in Pink

£99.95
Artola Midi Dress
Artola Midi Dress

Front Cut Out Long Sleeve Dress in Blurred Dreams

£79.95
Nicolette Maxi Dress
Nicolette Maxi Dress

Cape Sleeve Off Shoulder Dress in Cream

£99.95
Aria Midi Dress
Aria Midi Dress

One Shoulder Twist Detail Satin Bias Cut Dress in Espresso

£51.00
£69.95
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Showing 1 - 30 of 630 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.