Wedding Guest Dresses

Discover the perfect wedding guest dresses at Sister Online. From floral, floaty styles for summer weddings to modern, flattering designs from Kevan Jon and timeless silhouettes from Alquema, find your ideal dress for any wedding celebration.

Sale 20% off

Dea Kudibal Jackie Fitted Ruched Waist Cowl Neck Satin Dress Iris Blue

Regular price £299.00 £239.20 20% off
Save £59.80
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per 
Sale 30% off

Sara Roka Edrina90 Horse Print Belted Cotton Shirt Dress with Full Skirt Brown/Sky Horse

Regular price £579.00 £405.30 30% off
Save £173.70
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per 
Only One Left
Sale 10% off

Oui Floral Print Short Sleeve Belted Cotton Shirt Dress Blue 0575

Regular price £209.00 £188.10 10% off
Save £20.90
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Sale 20% off
Only One Left

Oui Floral Print Belted Cotton Sleeveless Dress White/Blue 0541

Regular price £179.00 £143.20 20% off
Save £35.80
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per 
Sale 30% off

Rosso35 Chevron Stripe Belted Soft Cotton Shirt Dress Blue/White/Beige

Regular price £439.00 £307.30 30% off
Save £131.70
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per 
Sold out

Rosso35 Tie Waist Super Soft Cotton Shirt Dress Baby Pink

Regular price £340.00 £272.00 20% off
Save £68.00
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per 
Only One Left
Only One Left

Our Purpose

At Sister, our purpose is simple: to make fashion personal. We believe shopping should feel inspiring, not overwhelming, and our boutique offers a place where you can build your whole wardrobe without needing to go anywhere else. Every piece we stock is chosen to bring joy, confidence, and practicality into our customers’ everyday lives.

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Exclusive Pieces

Every piece is selected for individuality and quality.

Trusted for Generations

35 years in business, customer returning for 30+ years.

Personal Touch

Styling advice, honest fit guidance & over the phone support.