While watching two friends or family members get married is super exciting, let's face it, selecting a wedding guest dress is tricky at the best of times, let alone when you're pregnant. Luckily, the best maternity wedding guest dresses are no longer few and far between, especially as you don't necessarily need to buy from a dedicated maternity range.
In recent years, maternity fashion has evolved significantly, offering more options for expectant mothers. Dedicated maternity labels like Seraphine have become go-to brands, providing elegant wedding guest dresses designed with comfort and style in mind, many of which can be worn beyond pregnancy, too (there are some excellent dresses for breastfeeding). Meanwhile, retailers such as ASOS and H&M have been catching up, expanding their maternity collections with stylish affordable options that offer some of the best maternity clothes on the high street. For those looking beyond maternity-specific pieces, many non-maternity dresses with forgiving silhouettes can be worn during and after pregnancy, offering versatility. The main thing to consider is that because you might need to go up a size or two. Additionally, renting maternity wedding guest dresses has grown in popularity, allowing women to wear high-end designs without the long-term commitment.
Grazia's Best Maternity Wedding Guest Dresses 2025, At A Glance:
Editor's choice:Asceno, Oslo Dress Burgundy Vine Silk Twill, £425
Best overall maternity wedding guest dress: H&M, Mama Balloon Sleeve Maxi Dress, £64.99
Best wrap maternity wedding guest dress: Vila at ASOS, Wrap Maxi Dress with Frill Detail, £55
Best maternity wedding guest dress for nursing: Seraphine, Button-Through V-Neck Maternity Dress, £75
Best midaxi maternity wedding guest dress: Rixo, Freesia Midaxi Dress, £285
So, whether you're looking for a voluminous dress to flow over your bump or want to dress it up with something more form-fitting, there's a maternity wedding guest dress for everyone. Here are our top picks, including everything from Ganni to Seraphine.
How we tested the best maternity wedding guest dresses in 2025
As always, our team of fashion experts at Grazia (including Hannah Banks-Walker, head of fashion commerce and Julia Harvey, shopping editor) have scrolled through hundreds of maternity wedding guest dresses to find the very best, which offer the most comfort and the best size range. We’ve gathered advice and tips from women on the team (and friends of the team) who have experienced pregnancy to inform our selection of dresses. Their insights have allowed us to curate an edit of the very best options out there for weddings throughout the year, whatever your budget, style or needs. If we haven't tested a specific dress, it will come from a brand we have tested and trust implicitly to provide high quality and value for money. Find out more about how we test here.
Shop: Maternity Wedding Guest Dresses 2025
Editor's choice of maternity wedding guest dress
Size XS-XL| Hand tie neckline| Maxi | Relaxed fit
www.farfetch.com
Hattie Brett, Grazia's Editor-in-chief says: 'I wore a polka dot version of this Asceno dress throughout my pregnancy - but it really delivered for events like weddings and work do's. The volumunious shape means it's airy for summer events with a big bump, but the neckline gives it an edge and meant I could still show off a bit of skin, which helped me feel like me in the latter stages of pregnancy. If you're worried about the bra situation, I wore a sports bra, which was also really comfortable. It's expensive for sure, but the silk is beautiful quality and that's why - six years later - I still wear my version of this dress for easy, breezy summer holidays and beach days.'
Best overall maternity wedding guest dress
www2.hm.com
Rebecca Holman, Grazia's digital director, says she wore a lot of H&M's Mama range throughout both of her pregnancies. 'I first discovered this maternity range when I was panic buying a dress for a wedding while pregnant with my first child. I ended up finding something that looked a lot like this dress (but was slightly different – this was years ago now!) and not only did I feel completely like myself and really comfortable for the whole day, I also received so many compliments. It was a bit of a fluke but, since then, I've worn several H&M dresses while pregnant and think they're really great in terms of fit and shape.'
Best maternity wedding guest dress for nursing
Size 6-20 | V-neckline | Easy button-down access for nursing | Mid-maxi length | Elasticated through back with self-tie fastening
www.seraphine.com
Specialising in maternity fashion, Seraphine has some lovely dresses that will work during and after your pregnancy, giving you more bang for your buck. This button-through style with subtle puff sleeves has a flattering shaped empire seam at the front, while the elasticated back has a tie you can adjust for maximum comfort. If you're attending a wedding just after you've had your baby, the button-down nature of this dress also makes it perfect for feeding.
Best midaxi maternity wedding guest dress
Size 6-26 | Crew neckline | Midaxi length | Adjustable waist tie
rixolondon.com
Charlotte Rogers, PR director (and friend of Grazia's Hannah Banks-Walker) chose Rixo for a wedding when she was five months pregnant and says: 'I love this dress for the cut and the flow. It’s flattering around the middle whether you’re pregnant or don’t want something tight-fitting around your tummy. I didn’t want anything tight at this stage in my pregnancy – I wanted something I would normally wear to a wedding. The staff at the Rixo store were incredibly helpful; I told them I was pregnant and they gave me lots of advice without being overbearing. I felt so comfortable in the dress and have since worn it to two other weddings when I haven’t been pregnant. I’m normally a size 10 but bought a 12 in this just so that it was as loose as I wanted it to be. I wish I could buy this in every colour.'
While Charlotte's exact dress is no longer available, Rixo has this very similar midaxi style that has a loose shape which can be adjusted using the waist ties. Just like Charlotte, we'd recommend sizing up if you're after a looser, more comfortable fit.
Best wrap maternity wedding guest dress
Size 6-18 | V-neckline | Maxi length | Adjustable tie waist
Sophie Woodhouse, midwife and sister-in-law to Grazia's Jade Moscrop, wore an ASOS wrap dress to a wedding while she was heavily pregnant. She says: 'I was 34 weeks pregnant and, while my dress wasn't actually a maternity dress, it had a tie-side which meant I could wear it during pregnancy and afterwards. It’s great for breastfeeding, too, thanks to the easy access. The chiffon-type material was nice and airy on an extremely hot day. I loved the floral print, perfect for wedding season, and I can easily dress it up with heels or dress it down with Birkenstocks or trainers.'
Best curved waist maternity wedding guest dress
Size 4-16 | V-neckline | Maxi length | Concealed zip
www.nobodyschild.com
While this isn't specifically maternity wear, the oversized silhouette and curved waist of this dress make it a great choice for weddings or special occasions while you're pregnant. It's lightly lined, so the fabric falls nicely and, as the brand recommends sizing down, you can afford to get your normal size or a size bigger depending on how loose you'd like it to be. You can also wear this way beyond pregnancy – the '70s-inspired shape and details are timeless.
Best loose fit maternity wedding guest dress
Size XS – L | Round neckline | Maxi length | Keyhole closure
www.stories.com
If you're looking for an oversized dress that you can wear during and after pregnancy, this & Other Stories has the perfect loose fit that will work for any stage of pregnancy – and any season, for that matter. Designed to be roomy, if you're heavily pregnancy and want even more space, opt for the size up. You could always have it taken in afterwards, so you can continue wearing it for weddings in the future.
Best maternity wedding guest dress for spring
One size: fits sizes XS – XXL | Halterneck | Maxi length | 100% linen
www.net-a-porter.com
Not only is this super glamorous, it's also one-size-fits-all, which means you can wear it while pregnant, postpartum and beyond. Don't let the idea of one size put you off, though – this dress comfortably fits those who are between a size XSmall-XXLarge and all body shapes. The fabric is lightweight, which will be particularly comfortable during pregnancy, as it's 100% linen. You will need to ensure you invest in a great strapless bra, however, to provide good support.
Best maternity wedding guest dress for summer
Size 4-16 | Round neck | Maxi length | Machine washable
www.cos.com
If you buy this dress in a size bigger than usual (or even two if you're very pregnant and want something oversized and breezy for hot weather), you'll find this will be perfect for summer or destination weddings. All you need to add is a pair of flat sandals, a chunky gold necklace and you're ready to go.
Best maternity wedding guest dress for autumn
Size XXS – XL | V-neck | Maxi length | Flowy silhouette
www.libertylondon.com
Due to the V-neck and gathered detail under the bust, you'll find this is great for a growing bump, although you may need to choose a size larger than usual. The half length puff sleeves and earthy tones make it an ideal choice for autumn weddings, as Hannah Banks-Walker suggests: 'While I'm not pregnant, I do have several of Farm Rio's dresses and can attest to their high quality. They feel so lovely to wear and, what I love about this dress in particular is that you could dress it up or down for various events, whether you're pregnant or not.'
What can a pregnant woman wear to a wedding?
We're true believers in the fact that, when it comes to wedding guest dressing, you should ultimately be wearing something that makes you feel comfortable on the inside and out. If your summer mood is wafting around in a silk or cotton kaftan, something with plenty of volume is probably a good shout. If, on the other hand, a form-fitting bodycon dress is how you tend to do business on the wedding circuit, go right ahead with this one-shouldered maxi dress from Club L. Here are a few things to bear in mind before you splash the cash…
Watch The Waist
There will come a time when you're growing bump might start to strain against your waistline, which won't be comfortable for a long day of celebrations, trust us. Wedding guest dresses with an empire-line that are cut under the bust are much easier to wear as they’ll flow over your tummy and be much less constraining.
Floaty Is Your Friend
Kaftan and smock-style dresses are not only super chic but are preggo-friendly too. You’ll find lots of great floaty dresses this season; stylish but also great bump-coverers. A particularly perfect option for maternity wedding guest dresses if you're heading to a beach ceremony.
Size Is Just A Number
Not all shops stock a dedicated maternity dress range, but you can still find items in non-maternity collections that would work, provided you go up a couple of sizes. Shape and fit are much more important than size here, so make sure you opt for a style that makes you feel comfortable and try it on in a couple of options if necessary.
Longer Is Better
When shopping for dresses, look carefully at the hemlines and make sure you have a bit of slack built in for when the bump gets bigger. If necessary, go a size up to get the length right.
Try Renting
And finally, why not consider renting? Not only is this better for your purse, but it’s kinder on the environment, too - plus you can borrow a dress from around £20, in any size required for you, whatever stage of pregnancy you're at - win-win.
Rebecca Holman Digital Director said, ‘I rented a dress from Hurr for a wedding a week before my due date. I went a size up but chose a dress with shirring round the bust, which worked well. Only potential pitfall is that the size was a total guess, so I had to hold my nerve and try the dress on when it arrived two days before the wedding and cross my fingers that it fit ok. A last-minute traipse around the shops when I was nine months pregnant wouldn’t have been much fun. But in the end it worked out brilliantly - I felt great and not guilty for splashing out on a dress that I was never going to wear again.
Think about how many of your old clothes you're still wearing and where you've had to switch out for maternity clothes - it'll give you a good indicator of whether you can size up non-maternity clothes or not. I had a massive bump but everything else was pretty much the same as before so I could get away with a dress with an Empire bust line and no waist. I also opted for a maxi length as my bump made the hemline ride up a bit, and those extra inches gave me more room for manoeuvre (and hid my swollen ankles).'
Charlotte Pavitt worked as Grazia’s fashion assistant until 2022 when she left to join Liberty as Junior Interiors Editor. She's now Content Editor at Homes & Gardens.
Main Image Credit: kikeaj_