Formal Dresses

734 Products

Judee Midi Dress
Judee Midi Dress

One Shoulder High Side Split Dress in Wine

£89.95
Criselda Maxi Dress
Criselda Maxi Dress

One Shoulder Maxi Dress in Blue

£89.95
Rosha Midi Dress
Rosha Midi Dress

Ruffle Strap Dress in Electric Blue

£89.95
Salome Midi Dress
Salome Midi Dress

Halter Neck Column Dress in Black

£99.95
Poppy Maxi Dress
Poppy Maxi Dress

Contrast Skirt Deep Plunge Halter Dress in Blue

£89.95
Avery Midi Dress
Avery Midi Dress

Strapless Draped Side Split Dress in Pink

£109.95
Alessa Midi Dress
Alessa Midi Dress

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

£79.95
Indi Maxi Dress
Indi Maxi Dress

Boat Neck Bodycon Dress in Light Blue

£89.95
Charlita Maxi Dress
Charlita Maxi Dress

Strapless Cowl Back Satin Dress in Steel Blue

£89.95
Marguerite Maxi Dress
Marguerite Maxi Dress
New

Strapless Ruched Mesh High Leg Split Dress in Red

£89.95
Ruby Maxi Dress
Ruby Maxi Dress

Halter Scoop Neck Low Back Bodycon Dress in Pink

£89.95
Indi Maxi Dress
Indi Maxi Dress

Boat Neck Bodycon Dress in Chocolate

£89.95
Georgia Maxi Dress
Georgia Maxi Dress

Mesh One Shoulder Ruched Bodycon Dress in Chocolate

£79.95
Nicolette Maxi Dress
Nicolette Maxi Dress

Cape Sleeve Off Shoulder Dress in Cream

£99.95
Nicolette Maxi Dress
Nicolette Maxi Dress
New

Cape Sleeve Off Shoulder Dress in Navy

£99.95
Alanna Maxi Dress
Alanna Maxi Dress

Off Shoulder Ruched Mesh Dress in Chocolate

£89.95
Marcel Maxi Dress
Marcel Maxi Dress

Off Shoulder Corset High Split Dress in Sage

£109.95
Aria Midi Dress
Aria Midi Dress

Strapless Tie Waist Dress in Chocolate

£89.95
Solara Maxi Dress
Solara Maxi Dress
New

Cowl Neck Backless Dress in Midnight Resort Orchid Print

£99.95
Indi Maxi Dress
Indi Maxi Dress

Boat Neck Bodycon Dress in Black

£89.95
Mandy Midi Dress
Mandy Midi Dress

Knot Detail Cut Out Mesh Dress in Wine

£79.95
Criselda Maxi Dress
Criselda Maxi Dress
New

One Shoulder Maxi Dress in Navy

£89.95
Benny Maxi Dress
Benny Maxi Dress

Halter Neck Backless Bodycon Dress in Pink

£109.95
Georgine Midi Dress
Georgine Midi Dress

One Shoulder Ruched Tiered Dress in AUTUMN FLORAL

£89.95
Aletta Maxi Dress
Aletta Maxi Dress

Cowl Cross Back Dress in Burn Out Floral

£85.00
£99.95
You save 15%
Roxanne Maxi Dress
Roxanne Maxi Dress

Sweetheart Neck Gathered Bodycon Dress in Red

£89.95
Carrie Maxi Dress
Carrie Maxi Dress

Cowl Back Lace Insert Dress in Black

£79.95
Tiffy Midi Dress
Tiffy Midi Dress

Square Neck Ruched Bodycon Dress in Scarlet

£79.95
Marcel Maxi Dress
Marcel Maxi Dress

Off Shoulder Corset High Split Dress in Wine

£109.95
Criselda Maxi Dress
Criselda Maxi Dress

One Shoulder Maxi Dress in Lemon

£89.95
Showing 1 - 30 of 734 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.