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Boys 3-Piece Suits

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

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.

Shop by style: Navy 3-Piece Suits | Grey 3-Piece Suits | Black 3-Piece Suits

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225 products

Save £90.02Boys 3-Piece Tweed Wool Blend Blue Suit - Cavani ORSON BlueBoys 3-Piece Tweed Wool Blend Blue Suit - Cavani ORSON Blue
Cavani
Boys 3-Piece Tweed Wool Blend Blue Suit - Cavani ORSON Blue Sale priceFrom £34.97 Regular price£124.99
(7)
On saleBoys Tweed Windowpane Check Suit - 3-Piece or 6-Piece - Cavani CODY BlueBoys Tweed Windowpane Check Suit - 3-Piece or 6-Piece - Cavani CODY Blue
Cavani
Boys Tweed Windowpane Check Suit - 3-Piece or 6-Piece - Cavani CODY Blue Sale priceFrom £34.97 Regular price£124.99
(9)
On saleBoys Tweed Check Slim Fit Suit - 3-Piece or 5-Piece - Cavani KAISER Navy BlueBoys Tweed Check Slim Fit Suit - 3-Piece or 5-Piece - Cavani KAISER Navy Blue
Cavani
Boys Tweed Check Slim Fit Suit - 3-Piece or 5-Piece - Cavani KAISER Navy Blue Sale priceFrom £34.97 Regular price£144.99
(1)
Boys Double-Breasted Pinstripe Suit - 3-Piece & 6-Piece Set - BlackBoys Double-Breasted Pinstripe Suit - 3-Piece & 6-Piece Set - Black
SIRRI
Boys Double-Breasted Pinstripe Suit - 3-Piece & 6-Piece Set - Black Sale priceFrom £44.97
Boys Sheen Lapel Black Velvet Tuxedo Suit - Black Modle PictureBoys Sheen Lapel Black Velvet Tuxedo Suit - 3-Piece or 5-Piece Set - Romano Vianni
Romano Vianni
Boys Sheen Lapel Black Velvet Tuxedo Suit - 3-Piece or 5-Piece Set - Romano Vianni Sale priceFrom £103.99
Save £15.00Boys 3-Piece Tailored Fit Tweed Check Suit – Paul Andrew LEO BeigeBoys 3-Piece Tailored Fit Tweed Check Suit – Paul Andrew LEO Beige
Paul Andrew
Boys 3-Piece Tailored Fit Tweed Check Suit – Paul Andrew LEO Beige Sale price£84.99 Regular price£99.99
(1)
Boys Wool Blend Herringbone Check 3-Piece Suit - Cavani Albert BrownBoys Wool Blend Herringbone Check 3-Piece Suit - Cavani Albert Brown
Cavani
Boys Wool Blend Herringbone Check 3-Piece Suit - Cavani Albert Brown Sale priceFrom £124.99
Boys Double-Breasted Pinstripe Suit - 3-Piece & 6-Piece Set - BeigeBoys Double-Breasted Pinstripe Suit - 3-Piece & 6-Piece Set - Beige
SIRRI
Boys Double-Breasted Pinstripe Suit - 3-Piece & 6-Piece Set - Beige Sale priceFrom £44.97
(1)
On saleBoys Solid Tailored Fit Communion Suit Set - 3-Piece or 6-Piece - Off WhiteBoys Solid Tailored Fit Communion Suit Set - 3-Piece or 6-Piece - Off White
SIRRI
Boys Solid Tailored Fit Communion Suit Set - 3-Piece or 6-Piece - Off White Sale priceFrom £38.97 Regular price£78.99
On saleBaby & Boys 3-Piece White Cotton-Linen Waistcoat Shorts Suit Set - WHITBYBaby & Boys 3-Piece White Cotton-Linen Waistcoat Shorts Suit Set - WHITBY
SIRRI
Baby & Boys 3-Piece White Cotton-Linen Waistcoat Shorts Suit Set - WHITBY Sale priceFrom £13.99 Regular price£44.99
(2)
On saleBoys Tailored Fit Tweed Check Suit - 3-Piece or 6-Piece - Paul Andrew MARK Stone BeigeBoys Tailored Fit Tweed Check Suit - 3-Piece or 6-Piece - Paul Andrew MARK Stone Beige
Paul Andrew
Boys Tailored Fit Tweed Check Suit - 3-Piece or 6-Piece - Paul Andrew MARK Stone Beige Sale priceFrom £84.99 Regular price£99.99
On saleBoys Slim Fit Navy Suit - 3-Piece or 6-Piece - Cavani SEEBA Navy BlueBoys Slim Fit Navy Suit - 3-Piece or 6-Piece - Cavani SEEBA Navy Blue
Cavani
Boys Slim Fit Navy Suit - 3-Piece or 6-Piece - Cavani SEEBA Navy Blue Sale priceFrom £34.97 Regular price£99.99
On saleBoys Tailored Fit Windowpane Check Suit - DOMINIC - Burgundy - Blue Model PictureBoys Tailored Fit Windowpane Check Suit - DOMINIC - Burgundy - Blue Back Picture
SIRRI
Boys 3 Piece Tailored Fit Windowpane Check Suit - DOMINIC - Burgundy - Blue Sale priceFrom £33.97 Regular price£54.99
(2)
On saleBoys Tweed Slim Fit Suit - 3-Piece or 6-Piece - Cavani WELLS Light BlueBoys Tweed Slim Fit Suit - 3-Piece or 6-Piece - Cavani WELLS Light Blue
Cavani
Boys Tweed Slim Fit Suit - 3-Piece or 6-Piece - Cavani WELLS Light Blue Sale priceFrom £34.97 Regular price£134.99
(2)
On saleBoys Slim Fit Wedding Suit - 3-Piece & 5-Piece - Cavani Jay BlueBoys Slim Fit Wedding Suit - 3-Piece & 5-Piece - Cavani Jay Blue
Cavani
Boys Slim Fit Wedding Suit - 3-Piece & 5-Piece - Cavani Jay Blue Sale priceFrom £29.97 Regular price£134.99
On saleBoys Wool Blend Herringbone Tweed Blue Suit - 3-Piece & 6-Piece - Navy Blue - CavaniBoys Wool Blend Herringbone Tweed Blue Suit - 3-Piece & 6-Piece - Navy Blue - Cavani
Cavani
Boys Wool Blend Herringbone Tweed Blue Suit - 3-Piece & 6-Piece - Navy Blue - Cavani Sale priceFrom £29.97 Regular price£134.99
(2)
On saleBoys 3-Piece Wool Tweed Windowpane Check Suit - Robert Simon Joshua Forest GreenBoys 3-Piece Wool Tweed Windowpane Check Suit - Robert Simon Joshua Forest Green
Robert Simon
Boys 3-Piece Wool Tweed Windowpane Check Suit - Robert Simon Joshua Forest Green Sale priceFrom £74.97 Regular price£108.99
On saleBoys Slim Fit Royal Blue Suit - 3-Piece or 6-Piece - Cavani FORDBoys Slim Fit Royal Blue Suit - 3-Piece or 6-Piece - Cavani FORD
Cavani
Boys Slim Fit Royal Blue Suit - 3-Piece or 6-Piece - Cavani FORD Sale priceFrom £34.97 Regular price£139.99
Save £15.00Boys 3-Piece Tailored Fit Windowpane Check Suit - Paul Andrew Hamleys Cornflower BlueBoys 3-Piece Tailored Fit Windowpane Check Suit - Paul Andrew Hamleys Cornflower Blue
Paul Andrew
Boys 3-Piece Tailored Fit Windowpane Check Suit - Paul Andrew Hamleys Cornflower Blue Sale price£84.99 Regular price£99.99
(1)
On saleBoys Tailored Fit Formal Suit - 3-Piece & 6-Piece - Parliament BlueBoys Tailored Fit Formal Suit - 3-Piece & 6-Piece - Parliament Blue
SIRRI
Boys Tailored Fit Formal Suit - 3-Piece & 6-Piece - Parliament Blue Sale priceFrom £20.97 Regular price£59.99
(4)
On saleBoys 3-Piece Tailored Fit Suit - Paris - NavyBoys 3-Piece Tailored Fit Suit - Paris - Navy
SIRRI
Boys 3-Piece Tailored Fit Suit - Paris - Navy Sale priceFrom £62.97 Regular price£110.97
Boys 3-Piece Glen Check Tweed Formal Suit - Paul Andrew Regent Olive GreenBoys 3-Piece Glen Check Tweed Formal Suit - Paul Andrew Regent Olive Green
Paul Andrew
Boys 3-Piece Glen Check Tweed Formal Suit - Paul Andrew Regent Olive Green Sale price£89.00
(2)
Boys Slim Fit Tweed Check Suit - CARIDI - Sage Green Model PictureBoys Slim Fit Tweed Check Suit - CARIDI - Sage Green Model Back Picture
Cavani
Boys 3-Piece Tweed Glen Check Slim Fit Suit - Cavani CARIDI Sage Green Sale price£124.99
(1)
Save £35.00Boys Tweed Check Tailored Fit Navy Suit - ALEX - Royal Blue Front PictureBoys Tweed Check Tailored Fit Navy Suit - ALEX - Royal Blue Model Picture
Paul Andrew
Boys 3-Piece Tweed Check Tailored Fit Navy Suit - Paul Andrew ALEX Royal Blue Sale price£64.99 Regular price£99.99
(2)
On saleBoys Check Tailored Fit Blue Suit - 3-Piece or 6-Piece - LIONELBoys Check Tailored Fit Blue Suit - 3-Piece or 6-Piece - LIONEL
SIRRI
Boys Check Tailored Fit Blue Suit - 3-Piece or 6-Piece - LIONEL Sale priceFrom £20.97 Regular price£69.99
(1)
Boys 3-Piece Glen Check Tweed Formal Suit - Regent - Wine Burgundy Model PictureBoys 3-Piece Glen Check Tweed Formal Suit - Regent - Wine Burgundy Model Front Picture
Paul Andrew
Boys 3-Piece Glen Check Tweed Formal Suit - Paul Andrew Regent Wine Burgundy Sale price£89.00
Save £15.00Boys 3-Piece Tailored Fit Suit - Paul Andrew MAYFAIR Royal BlueBoys 3-Piece Tailored Fit Suit - Paul Andrew MAYFAIR Royal Blue
Paul Andrew
Boys 3-Piece Tailored Fit Suit - Paul Andrew MAYFAIR Royal Blue Sale price£84.99 Regular price£99.99
(1)
Boys Double-Breasted Pinstripe Suit - 3-Piece & 6-Piece Set - GreyBoys Double-Breasted Pinstripe Suit - 3-Piece & 6-Piece Set - Grey
SIRRI
Boys Double-Breasted Pinstripe Suit - 3-Piece & 6-Piece Set - Grey Sale priceFrom £44.97
(2)
On saleBoys 3-Piece Formal Communion Slim Fit Suit - IvoryBoys 3-Piece Formal Communion Slim Fit Suit - Ivory
SIRRI
Boys 3-Piece Formal Communion Slim Fit Suit - Ivory Sale priceFrom £36.99 Regular price£56.99
(4)
On saleBaby & Boys 3-Piece White Cotton-Linen Waistcoat Suit Set - WHITBY Modle PictureBaby & Boys 3-Piece White Cotton-Linen Waistcoat Suit Set - WHITBY
SIRRI
Baby & Boys 3-Piece White Cotton-Linen Waistcoat Suit Set - WHITBY Sale priceFrom £13.99 Regular price£44.99
(3)
On saleBoys 3-Piece Tailored Fit Textured Suit - Robert Simon ELI Navy BlueBoys 3-Piece Tailored Fit Textured Suit - Robert Simon ELI Navy Blue
Robert Simon
Boys 3-Piece Tailored Fit Textured Suit - Robert Simon ELI Navy Blue Sale priceFrom £43.97 Regular price£55.99
Save £15.00Boys 3-Piece Tailored Fit Suit - Paul Andrew MAYFAIR Stone BeigeBoys 3-Piece Tailored Fit Suit - Paul Andrew MAYFAIR Stone Beige
Paul Andrew
Boys 3-Piece Tailored Fit Suit - Paul Andrew MAYFAIR Stone Beige Sale price£84.99 Regular price£99.99
On saleBoys 3 Piece Tweed Tailored Fit Formal Suit - Paul Andrew Ralph GreyBoys 3 Piece Tweed Tailored Fit Formal Suit - Paul Andrew Ralph Grey
Paul Andrew
Boys 3 Piece Tweed Tailored Fit Formal Suit - Paul Andrew Ralph Grey Sale priceFrom £53.97 Regular price£99.99
(3)
Sold outSave £35.00Boys’ Tailored Fit Tweed Check Suit – LEO - Green Model PictureBoys 3 Piece Tailored Fit Tweed Check Suit – Paul Andrew LEO Green
Paul Andrew
Boys 3 Piece Tailored Fit Tweed Check Suit – Paul Andrew LEO Green Sale priceFrom £64.99 Regular price£99.99
On saleBoys 3-Piece Sheen Grey Suit - Beau Kid GreyBoys 3-Piece Sheen Grey Suit - Beau Kid Grey
Beau Kid
Boys 3-Piece Sheen Grey Suit - Beau Kid Grey Sale priceFrom £33.97 Regular price£74.99
On saleBoys Slim Fit Formal Suit - REEGAN - Light GreyBoys Slim Fit Formal Suit - REEGAN - Light Grey Model Front Picture
Cavani
Boys Slim Fit Formal Suit - 3-Piece or 5-Piece - Cavani REEGAN Light Grey Sale priceFrom £34.97 Regular price£139.99

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.