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25 Perfect Plus Size Mother of the Groom Outfits and Dresses

We've picked our favourite plus size mother of the groom outfits to make you feel your confident best, from the most elegant styles on the high street to flattering designer looks.

Blue v-neck dress with purple and yellow abstract pattern

Blue v-neck dress with purple and yellow abstract pattern

Finding the perfect mother of the groom dress can be a minefield - and that's before you add in the fact that you're searching for a plus size outfit.

Although the fashion industry has come on leaps and bounds in recent years, it still isn't where it should be when it comes to inclusive sizing. While some brands offer options for all bodies, some simply do not, making it hard to know where to start with your plus size mother of the groom dress search. 

This is not what you need when you're already dealing with the stress of coming up with an outfit that marks you out as a key member of the wedding party without being too look-at-me (it's the couple's big day, after all).

However, beautiful plus size mother of the groom dresses do exist; we know, because we've found them! 

We've scoured the best size-inclusive high street and designer collections, as well as gorgeous plus-size-specific brands, and come up with 25 elegant options. From the prettiest lace for spring and summer to long sleeves for autumn and winter, these are the plus size mother of the groom dresses to know about.

1. Studio 8 Perla Lace Dress – £160, Phase Eight

Pink dress with a lace bodice and a smooth skirt

Studio 8 is Phase Eight's beautifully designed plus size collection, and it's fast becoming one of our favourite destinations for flattering wedding party looks. Just take this Perla dress, which comes in a perfectly judged shade of pink - romantic rather than overly sugary - and features a removable lace bodice. 

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2. Wrapt London Sleeveless Jacquard Dress – £39.99, M&Co

Model wearing a sleeveless pale blue midi dress

Ignore the misleading model - this stylish dress is available up to size 24. It's a pleasingly pared-back design that should appeal to a mother of the groom who prefers her fashion on the unfussy side.

The dress also comes in navy, but we like the lighter blue for a summer wedding.

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3. Military Embroidered Velvet Dress – £75, Monsoon

Blue velvet midi dress with sleeves and embroidery on the bodice

This velvet dress is rather off-puttingly named - does any mother of the groom want to look like they're off to war at their son's wedding? - but fear not. The 'military' refers to subtle design details on the bodice, such as the frogging, and the overall effect is sophisticated and chic rather than army surplus. It would be ideal for an autumn or winter celebration.

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4. Embroidered Jersey Midi Dress – £110, Boden

Black midi dress with brightly coloured floral pattern

Available to size 22, this Boden dress is boho shot through with sophistication, bringing together a notice-me print with a draped silhouette.

We particularly love the extra colour pop at the cuffs and collar, which feels very 2021.

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5. Junarose Printed Maxi Dress – £42, Vero Moda

Blue maxi dress with a pink and green floral print, collar and short sleeves

Love a maxi? Us too. The only trouble is, at a wedding, a floor-length dress risks looking a bit bridesmaid-y. There's no such issue with this printed design, which showcases mother-of-the-bride elegance all the way thanks to those short sheer sleeves and shirt collar.

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6. Button-Front Top & Midi Skirt Set – $89.50, Torrid

Burnt orange lace top with short sleeves and matching midi skirt

Torrid is a brand we adore for ultra-stylish plus size designs. They're based in the US but ship internationally - do check out potential tax and extra delivery charges before you order.

The advantage of ordering from the States, of course, is that it's highly unlikely anyone else will turn up in the same outfit. What's more, this midi skirt set is designed to flatter, and each piece can be worn again separately at special occasions after the wedding.

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7. Pink Cold Shoulder Floral Maxi Dress – £95, Lovedrobe

Pink floral maxi dress with cut-out shoulders

Lovedrobe is another key brand to bookmark for high-style plus size fashion. This heart-meltingly pretty floral maxi is ideal for a mother of the groom who's in love with the idea of a romantic look.

The cut-out shoulders and choker-style neckline keep the overall effect modern.

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8. Style 991703 – £POA, Veni Infantino

Pale blue skirt and top with long cape sleeves

If you're looking for a designer mother of the groom dress, do check out Veni Infantino - and, in particular, this rather stunning dress and jacket.

Available in sizes 6-30, it's a gloriously sophisticated set that would be just the thing for a formal wedding, with sleeves that will look amazing in the photos.

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9. Studio 8 Becky Kimono Dress – £120, Phase Eight

Pink short sleeve dress that falls just below the knee

Proof that a stand-out dress doesn't have to involve lots of embellishment, Phase Eight's Becky features a stunning silhouette and a delicious shade of pink, providing everything you need for a high-impact mother of the groom look.

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10. Maya Deluxe Misty Green Embellished Long Sleeve Maxi Dress – £90, Lovedrobe

Green maxi dress with a long sleeve sparkly bodice and a floaty skirt

Of course, there are those among us who love embellishment - and who says the mother of the groom can't get her sparkle on? This Lovedrobe dress has a sequin bodice that contrasts beautifully with the light-as-air tulle skirt. It's a lovely look for a glamorous wedding.

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11. Abstract Print V-Neck Dress – £285, The Hour

Blue v-neck dress with purple and yellow abstract pattern

The Hour is a British plus size brand that's all about luxury and flattering the curves - as exemplified by this sleek dress, with a striking abstract print and a chic silhouette.

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12. Curve Sequin Angel Sleeve Maxi Dress – £149, Coast

Blush pink dress with a dropped hem sequin bodice and a floaty skirt

This vintage-inflected dress is ideal for a mother of the groom who's inspired by 1920s glamour. It's also available in navy, sage and silver.

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READ MORE: 44 Best Mother of the Groom Dresses & Outfits

13. Taffeta Dress – £1,057, Marina Rinaldi

Blue maxi dress with a collar, long sleeves and a voluminous skirt

It doesn't get much more regal than this maxi dress from renowned Italian plus size designer Marina Rinaldi. It's unfussy, and yet the voluminous silhouette commands attention.

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14. Joanna Hope Floral Print Maxi Dress – £85, Simply Be

Black maxi dress with elbow-length sleeves and a red floral print

This Joanna Hope dress is a shining example of how to make floral feel modern. Combining a gorgeous colourway with up-to-date design details such as the tiered skirt and volume sleeves, it's perfect for a mother of the groom who wants to look timeless but with a nod to the trends.

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15. Studio 8 Jasmine Floral Dress – £135, Phase Eight

Blue midi dress with floral print

For another fresh take on the classic floral, this Phase Eight dress eschews the usual all-over print for beautiful blooms on the sleeves and skirt. 

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16. Jacquard Ruffle Drawstring Dress – £249, Anna Scholz

Mint green midi dress in a dotted fabric

Anna Scholz certainly knows her to dress curves - she's one of the UK's go-to designers for special plus-size pieces. This midi dress is a case in point. From the spotted jacquard fabric in an enchanting mint to the perfectly placed ruffles, everything about it says elegance.

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17. Blouse Dress Ruches in Leopard – £148.81, Yoek

Leopard print midi dress with collar

A blouse dress - a softer version of a shirt dress - is a great choice for a mother of the groom at an autumn or winter wedding, and we particularly love this leopard version from plus-size brand Yoek. While it looks great with the studded boots here, you can easily make it more formal with heels or chic flats.

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18. Pearline Dress – £1,595, Erdem

Blue ruffled midi dress with paisley print

Erdem announced this year that they will be adding size inclusivity to their collections from now on, giving you access to some true designer loveliness for your mother of the groom look. Just take the Pearline dress, featuring an enchantingly pretty paisley print on luxurious silk voile.

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19. Pink Metallic Spot Tiered Maxi – £75, Wallis 

Pink spotted halterneck maxi dress with black spots

Wallis runs to a size 20, and there are some beautiful options for the mother of the groom, especially if you're putting together a summer look. This halterneck maxi is particularly stylish, and can be smartened up with a jacket for the ceremony if you want to go more formal.

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20. Coral Floral Lace Maxi Dress – £95, Lovedrobe

Coral lace wrap midi dress with long sleeves

Coral is a smart choice for summer, and this lace dress showcases the shade in all its glory. If you want to emphasis your waist, it comes with a detachable ribbon.

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21. Xanthe Magenta Shirt Dress – £269, Bombshell HQ

White shirt dress with a red and pink rose print

Bombshell HQ's mission is to allow women to celebrate their curves with confidence - and they're clearly succeeding with this design. The silhouette is stunning, and the bold rose print will look amazing in the wedding photos. 

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22. Studio 8 Tabitha Beaded Maxi Dress – £225, Phase Eight

Green maxi dress with black beading on the angel sleeves

If you're looking for a mother of the groom dress with some subtle sparkle, Phase Eight's Tabitha fits the bill. There's just the right amount of beading on the bodice, contrasting beautifully with the fresh emerald fabric.

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23. John Browns Leaf Print Dress – £45, Simply Be

Black and red short sleeves midi dress

We've fallen hard for this black and red dress, available in sizes 20 to 32 at Simply Be. It's an effortlessly stylish piece that can be easily accessorised to chime with your personal style as mother of the groom.

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24. Black A-Line Dress – £390, The Hour

Black a-line midi dress with long sheer sleeves

It's hard to imagine a more timelessly elegant option than this a-line dress. It's the simplicity that gives it such beauty - the perfect cut; the silk georgette sleeves. If you're worried about wearing black to the wedding, just check with the couple - trust us, it's a lot more common these days.

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25. Felicity Tiered Smock Dress – £26, Blue Vanilla Curve

Model perched on a chair wearing a navy midi dress with white polka dots

Want sophistication at a bargain price point? The Felicity dress from Blue Vanilla's Curve collection will do the trick.

Polka dots are ideal for a mother of the groom look, particularly in a white and navy colourway. Dress it up with nude or metallic shoes and some elegant jewellery.

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Once you've decided on your look, you can turn your attention to the wedding present - our guide to unique gifts will help you get them something they'll really treasure.