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 75% off
Clearance

Forever Unique Vida Fishtail Midi Bandage With V-Neck Ivory/Black

Regular price £219.99 £54.99 75% off
Save £165.00
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Sale 67% off
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Forever Unique Hazel Embroidered Floral Dress Nude

Regular price £149.99 £49.00 67% off
Save £100.99
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Sale 75% off
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Forever Unique Promise Long Maxi Dress With Choker Neck Coral

Regular price £249.99 £62.50 75% off
Save £187.49
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Sale 70% off
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Dea Kudibal Riley Floral Print Silk Wrap And Tie Dress Orange

Regular price £299.00 £89.00 70% off
Save £210.00
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Sale 70% off
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Riani Sleeveless Dress Blush

Regular price £259.00 £77.70 70% off
Save £181.30
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Sale 67% off
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Fee G Belted Three Quarter Sleeve Dress Sand

Regular price £229.00 £75.00 67% off
Save £154.00
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Sale 66% off
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Fee G Long Mesh & Embroidered Mosaic Effect Skater Dress Grey

Regular price £235.00 £79.00 66% off
Save £156.00
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Sale 50% off
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Fee G Scribble Print Jersey Top Dress Pink

Regular price £289.00 £144.00 50% off
Save £145.00
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Sale 55% off
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Fee G Scribble Print Jersey Top Dress Beige

Regular price £239.00 £108.00 55% off
Save £131.00
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Sale 52% off

Izabella Flower Print Boat Neck Fit And Flare Dress Multi

Regular price £269.00 £130.00 52% off
Save £139.00
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Sale 50% off
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Riani Leaf Print Tiered Hem Dress With Stitch Cuff Peach Dust

Regular price £319.00 £159.50 50% off
Save £159.50
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Sale 51% off

Riani V Neck Chiffon Dress With Ruched Sides Fuchsia

Regular price £469.00 £232.00 51% off
Save £237.00
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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.