Formal Dresses

727 Products

Avery Midi Dress
Avery Midi Dress

Strapless Draped Side Split Dress in Pink

£109.95
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

£89.95
Avery Midi Dress
Avery Midi Dress

Strapless Draped Side Split Dress in Chocolate

£109.95
Salome Midi Dress
Salome Midi Dress

Halter Neck Column Dress in Black

£99.95
Blanca Midi Dress
Blanca Midi Dress

Cowl Neck Bias Cut Dress in Black Polka Dot

£79.00
£89.95
You save 12%
Isla Maxi Dress
Isla Maxi Dress

Satin One Shoulder Side Split Dress in Lemon

£79.00
£89.95
You save 12%
Alanna Maxi Dress
Alanna Maxi Dress

Off Shoulder Ruched Mesh Dress in Sage

£89.95
Karlie Maxi Dress
Karlie Maxi Dress

Scoop Neck Fitted Dress in Pink

£89.95
Rania Maxi Dress
Rania Maxi Dress

Contrast Lace Bodice Bias Cowl Drop Waist Dress in Black

£89.95
Pietra Midi Dress
Pietra Midi Dress

Scoop Neck Side Seam Tucks Fitted Dress in Pink

£99.95
Raya Maxi Dress
Raya Maxi Dress

Deep V Neck Low Back Bodycon Dress in Wine

£89.95
Nicolette Maxi Dress
Nicolette Maxi Dress

Cape Sleeve Off Shoulder Dress in Cream

£99.95
Criselda Maxi Dress
Criselda Maxi Dress

One Shoulder Maxi Dress in Black

£89.95
Criselda Maxi Dress
Criselda Maxi Dress

One Shoulder Maxi Dress in Lemon

£89.95
Avery Midi Dress
Avery Midi Dress

Strapless Draped Side Split Dress in Orange

£109.95
Ruby Maxi Dress
Ruby Maxi Dress

Halter Scoop Neck Low Back Bodycon Dress in Wine

£89.95
Marcel Maxi Dress
Marcel Maxi Dress

Off Shoulder Corset High Split Dress in Sage

£109.95
Almarie Midi Dress
Almarie Midi Dress

Halter Neck Mesh Dress in Lemon

£89.95
Salome Midi Dress
Salome Midi Dress

Halter Neck Column Dress in Wine

£99.95
Marcel Maxi Dress
Marcel Maxi Dress

Off Shoulder Corset High Split Dress in Black

£109.95
Aria Midi Dress
Aria Midi Dress

Strapless Tie Waist Dress in Chocolate

£89.95
Khalani Maxi Dress
Khalani Maxi Dress

Deep V Neck Satin Slip Dress in Navy

£89.95
Salome Midi Dress
Salome Midi Dress

Halter Neck Column Dress in Chocolate

£99.95
Jocelyn Maxi Dress
Jocelyn Maxi Dress

Strapless Ruched Fit And Flare Dress in Navy

£109.95
Nicolette Maxi Dress
Nicolette Maxi Dress

Cape Sleeve Off Shoulder Dress in Black

£99.95
Salome Midi Dress
Salome Midi Dress

Halter Neck Column Dress in Red

£99.95
Darcy Maxi Dress
Darcy Maxi Dress

One Shoulder Side Cut Out Gathered Dress in Black

£89.95
Roxanne Maxi Dress
Roxanne Maxi Dress

Sweetheart Neck Gathered Bodycon Dress in Red

£89.95
Showing 1 - 30 of 727 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.