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Boys 3-Piece Suits

Shop boys 3-piece suits for weddings, page boys, First Communion, Eid, prom and special events.

Discover boys' three-piece suits with jackets, waistcoats and trousers in slim fit and classic tailoring.

Select from classic navy, grey, and black or lighter shades plus tweed, check, and textured styles for a photo-ready finish.

Use filters to shop by size, colour and fit and find the right boys suit for your little one.

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221 products

On saleBoys’ 3-Piece Pinstripe Double-Breasted Suit - Beige & BrownBoys’ 3-Piece Pinstripe Double-Breasted Suit - Beige & Brown
SIRRI
Boys’ 3-Piece Pinstripe Double-Breasted Suit - Beige & Brown Sale priceFrom £49.97 Regular price£59.97
Boys 3-Piece Herringbone Windowpane Check Suit - Harris BrownBoys 3-Piece Herringbone Windowpane Check Suit - Harris Brown
Boys' Velvet Suit with Satin Shawl Lapels - EC103 - Royal Blue Model PictureBoys' Velvet Suit with Satin Shawl Lapels - EC103 - Royal Blue Back Picture
On saleBoys' Retro Check Slim Fit Formal Suit - GreyBoys' Retro Check Slim Fit Formal Suit - Grey
SIRRI
Boys' Retro Check Slim Fit Formal Suit - Grey Sale priceFrom £46.97 Regular price£68.99
On saleBoys Tuxedo Suit - Corduroy Velvet Waistcoat & shawl lapel - Royal Blue Front PictureBoys Tuxedo Suit - Corduroy Velvet Waistcoat & shawl lapel - Royal Blue Back picture
On saleBoys Tuxedo Suit - Corduroy Velvet Waistcoat & shawl lapel - Navy BlueBoys Tuxedo Suit - Corduroy Velvet Waistcoat & shawl lapel - Navy Blue
On saleBoys Tailored Fit Tweed Check Suit - MARK - Sky BlueBoys Tailored Fit Tweed Check Suit - MARK - Sky Blue
Paul Andrew
Boys Tailored Fit Tweed Check Suit - MARK - Sky Blue Sale priceFrom £54.99 Regular price£99.99
Boys Slim Fit Velvet Dinner Suit - 3-Piece & 5-Piece - SAVOY  - GreenBoys Slim Fit Velvet Dinner Suit - 3-Piece & 5-Piece - SAVOY  - Green Model Picture
On saleBoys Slim Fit Royal Blue Suit - Royal BlueBoys Slim Fit Royal Blue Suit - Royal Blue
Romano Vianni
Boys Slim Fit Royal Blue Suit - Royal Blue Sale priceFrom £76.97 Regular price£99.97
On saleBoys Plaid Check Slim Fit Suit - GreyBoys Plaid Check Slim Fit Suit - Grey
SIRRI
Boys Plaid Check Slim Fit Suit - Grey Sale priceFrom £39.97 Regular price£74.99
On saleBoys Piping Textured Suit - MATTEO - Navy BlueBoys Piping Textured Suit - MATTEO - Navy Blue
SIRRI
Boys Piping Textured Suit - MATTEO - Navy Blue Sale priceFrom £29.97 Regular price£69.99
Save £25.00Boys Formal Suit Set - Saks BlueBoys Formal Suit Set - Saks Blue
SIRRI
Boys Formal Suit Set - Saks Blue Sale price£39.99 Regular price£64.99
Boys Premium Twill 3-Piece Suit - Donatella - Sage GreenBoys Premium Twill 3-Piece Suit - Donatella - Sage Green
Boys 3-Piece Textured Suit - Miami - BeigeBoys 3-Piece Textured Suit - Miami - Beige
Boys 3-Piece Textured Suit - MIAMI - Sage GreenBoys 3-Piece Textured Suit - MIAMI - Sage Green
On saleBoys’ 3-Piece Slim Fit Smart Casual Suit - Gofre - Sky Blue Model PictureBoys’ 3-Piece Slim Fit Smart Casual Suit - Gofre - Sky Blue Picture
SIRRI
Boys’ 3-Piece Slim Fit Smart Casual Suit - Gofre - Sky Blue Sale priceFrom £29.97 Regular price£67.97
Boys Windowpane Check Navy Blue Suit Set - Navy BlueBoys Windowpane Check Navy Blue Suit Set - Navy Blue
Boys Tweed Check Sky Blue Suit Set - Sky BlueBoys Tweed Check Sky Blue Suit Set - Sky Blue
On saleBoys Slim Fit Piping Velvet Tuxedo Suit - LONDON - Dark GreenBoys Slim Fit Piping Velvet Tuxedo Suit - LONDON - Dark Green
SIRRI
Boys Slim Fit Piping Velvet Tuxedo Suit - LONDON - Dark Green Sale priceFrom £44.97 Regular price£79.99
On saleBoys Premium Black Velvet Tuxedo SuitBoys Premium Black Velvet Tuxedo Suit
SIRRI
Boys Premium Black Velvet Tuxedo Suit Sale priceFrom £39.97 Regular price£69.99
Save £25.00Boys Formal Suit Set - Midnight BlueBoys Formal Suit Set - Midnight Blue
SIRRI
Boys Formal Suit Set - Midnight Blue Sale price£39.99 Regular price£64.99
Save £30.00Boys’ 3-Piece Slim Fit Formal Suit - WILLIAM- Light GreyBoys’ 3-Piece Slim Fit Formal Suit - WILLIAM- Light Grey
Boys Tweed-Like Windowpane Check Suit with Contrast Collar - Navy BlueBoys Tweed-Like Windowpane Check Suit with Contrast Collar - Navy Blue
Save £30.00Boys Dark Charcoal Textured 3 Piece SuitBoys Dark Charcoal Textured 3 Piece Suit
SIRRI
Boys Dark Charcoal Textured 3 Piece Suit Sale price£34.97 Regular price£64.97
Boys 3-Piece Textured Suit - Miami - BlueBoys 3-Piece Textured Suit - Miami - Blue
Boys’ 3-Piece Textured Suit - Camden - BlueBoys’ 3-Piece Textured Suit - Camden - Blue
On saleBoys Windowpane Tailored Fit Suit- HARVEY - Dark Charcoal GreyBoys Windowpane Tailored Fit Suit- HARVEY - Dark Charcoal Grey
On saleBoys Windowpane Check Tweed Tailored Fit Suit - Dark Blue Model PictureBoys Windowpane Check Tweed Tailored Fit Suit - Dark Blue Front Picture
SIRRI
Boys Windowpane Check Tweed Tailored Fit Suit - Dark Blue Sale priceFrom £43.99 Regular price£59.99
On saleBoys Tailored Fit Suit Set In Sky Blue - Charles - BlueBoys Tailored Fit Suit Set In Sky Blue - Charles - Blue Model Picture
Paul Andrew
Boys Tailored Fit Suit Set In Sky Blue - Charles - Blue Sale priceFrom £54.97 Regular price£98.99
On saleBoys Tailored Fit Retro Check Navy Suit - Navy Blue - RedBoys Tailored Fit Retro Check Navy Suit - Navy Blue - Red
SIRRI
Boys Tailored Fit Retro Check Navy Suit - Navy Blue - Red Sale priceFrom £33.99 Regular price£64.99
Sold outBoys Slim Fit Woven Effect Plaid Check Suit - Navy BlueBoys Slim Fit Woven Effect Plaid Check Suit - Navy Blue
Sold outBoys Slim Fit Royal Blue Retro Check Suit - Royal Blue- BrownBoys Slim Fit Royal Blue Retro Check Suit - Royal Blue- Brown Model Picture
Save £28.00Boys Slim Fit Piping Grey Tuxedo Suit - GreyBoys Slim Fit Piping Grey Tuxedo Suit - Grey
SIRRI
Boys Slim Fit Piping Grey Tuxedo Suit - Grey Sale price£44.99 Regular price£72.99
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Boys Retro Check Slim Fit Suit - BeigeBoys Retro Check Slim Fit Suit - Beige
On saleBoys Plaid Check Slim Fit Suit - Navy Blue- BeigeBoys Plaid Check Slim Fit Suit - Navy Blue- Beige
SIRRI
Boys Plaid Check Slim Fit Suit - Navy Blue- Beige Sale priceFrom £39.97 Regular price£74.99
On saleBoys Plaid Check Slim Fit Suit - Black - GreyBoys Plaid Check Slim Fit Suit - Black - Grey
SIRRI
Boys Plaid Check Slim Fit Suit - Black - Grey Sale priceFrom £39.97 Regular price£74.99

Boys 3-Piece Suits: Jacket, Waistcoat & Trousers Sets for Weddings & Occasions

Shop Sirri’s boys 3-piece suits — smart jacket, waistcoat and trousers sets made for weddings, page boy duties, First Communion, graduations, Eid, family celebrations and formal events. Looking for more styles and fits? Browse the full range in Boys Suits.

Need quick help choosing? Jump to Boys 3-Piece Suits FAQs.

What’s Included in a Boys 3-Piece Suit?

  • Suit jacket for a sharp, tailored finish
  • Matching waistcoat for a classic formal look
  • Trousers to complete the 3-piece set

Style tip: a 3-piece suit is perfect if you want to mix-and-match your own shirt and accessories for different events.

Best Occasions for Boys 3-Piece Suits

  • Weddings & page boy outfits: coordinate with the wedding theme and accessories
  • Communion & ceremonies: classic, photo-ready formalwear
  • Prom, graduations & family celebrations: a smart look that feels grown-up

Shopping for a specific event? Explore Page Boy Suits, Boys Communion Suits, or go extra formal with Boys Tuxedos.

Complete the Look: Shirts, Ties, Shoes & Finishing Touches

Prefer an all-in-one outfit with the shirt and tie included? Shop Boys 5-Piece Suits. Or browse all styles in Boys Suits.

Boys 3-Piece Suits FAQs

What is a boys 3-piece suit?

A boys 3-piece suit is a coordinated set with a jacket, waistcoat and trousers. It’s a classic choice for weddings, ceremonies and formal events.

Does a 3-piece suit include a shirt and tie?

Usually no — 3-piece suits focus on the jacket/waistcoat/trousers. To finish the look, add a formal shirt and tie (or bow tie).

Should I choose a 3-piece or a 5-piece suit?

Choose a 3-piece suit if you want flexibility to style it with different shirts and accessories. Choose a 5-piece suit if you want the convenience of a full set.

What shoes go best with a boys 3-piece suit?

For the smartest finish, choose brogues or Oxford shoes. For a dressy slip-on, try boys loafers.