Formal Dresses

688 Products

Larson Maxi Dress
Larson Maxi Dress

Asymmetric Tie Neck Column Dress in Chocolate

£99.95
Pietra Midi Dress
Pietra Midi Dress

Scoop Neck Side Seam Tucks Fitted Dress in Pink

£99.95
Indi Maxi Dress
Indi Maxi Dress

Boat Neck Bodycon Dress in Lemon

£89.95
Genie Maxi Dress
Genie Maxi Dress

Off The Shoulder Dress in Baby Blue

£89.95
Rosha Midi Dress
Rosha Midi Dress

Ruffle Strap Dress in Butter

£57.00
£89.95
You save 37%
Dara Midi Dress
Dara Midi Dress

Low Neck Sleeveless Slip Dress in Amber Floral Print

£89.95
Calix Midi Dress
Calix Midi Dress

One Shoulder Slip Dress in Butter

£89.95
Visenta Midi Dress
Visenta Midi Dress

Asymmetrical Sleeve Dress in Blue

£99.95
Blanca Midi Dress
Blanca Midi Dress

Cowl Neck Bias Cut Dress in Black Polka Dot

£62.00
£89.95
You save 31%
Francis Maxi Dress
Francis Maxi Dress

Halter Ruched Backless Dress in Dark Chocolate

£89.95
Berri Maxi Dress
Berri Maxi Dress

Strapless Jacquard High Split Dress in Black

£109.95
Alanna Maxi Dress
Alanna Maxi Dress

Off Shoulder Ruched Mesh Dress in Sage

£89.95
Connie Midi Dress
Connie Midi Dress

Ruffle Detail Dress in Chocolate

£89.95
Zaya Midi Dress
Zaya Midi Dress

Strapless Satin Slip Dress in Navy

£53.00
£89.95
You save 41%
Namaari Midi Dress
Namaari Midi Dress

Faux Wrap One Shoulder Dress in Navy

£89.95
Indi Maxi Dress
Indi Maxi Dress

Boat Neck Bodycon Dress in Chocolate

£57.00
£89.95
You save 37%
Alessa Midi Dress
Alessa Midi Dress

V Neck Frill Detail Empire Waist Back Cut Out Dress in Adeana Print

£79.95
Veronnie Midi Dress
Veronnie Midi Dress

Tucked High Neck Sleeveless Fitted Leg Split Skirt Dress in Pink

£89.95
Alexandria Midi Dress
Alexandria Midi Dress

Tip Shoulder Draped Fitted Dress in Olive

£89.95
Jasmin Maxi Dress
Jasmin Maxi Dress
New

Sequin Overlay Dress in White

£99.95
Almarie Midi Dress
Almarie Midi Dress

Halter Neck Mesh Dress in Black

£89.95
Judee Midi Dress
Judee Midi Dress
New

One Shoulder High Side Split Dress in Red

£89.95
Ruby Maxi Dress
Ruby Maxi Dress

Halter Scoop Neck Low Back Bodycon Dress in Lemon

£89.95
Thelma Maxi Dress
Thelma Maxi Dress

Square Neck Bodycon Dress in Wine

£89.95
Donna Maxi Dress
Donna Maxi Dress

Cowl Neck Column High Split Dress in Black

£89.95
Rosanna Midi Dress
Rosanna Midi Dress

Plunge Lace Fit And Flare Dress in Chocolate

£89.95
Nicolette Maxi Dress
Nicolette Maxi Dress

Cape Sleeve Off Shoulder Dress in Pink

£99.95
Reeves Maxi Dress
Reeves Maxi Dress

Contrast Lace High Neck Fitted Satin Dress in Black

£99.95
Tatum Midi Dress
Tatum Midi Dress

Lace Off Shoulder Side Split Dress in Off White

£89.95
Georgia Maxi Dress
Georgia Maxi Dress

Mesh One Shoulder Ruched Bodycon Dress in Chocolate

£79.95
Showing 1 - 30 of 688 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.