What does formal wedding guest attire mean?

Formal wedding guest attire typically means long (or midi) gowns and tuxedos or suits. It’s a step up from cocktail attire, but not as fancy as black- or white-tie. According to Bingham, look for a dress in a long length with an elevated material (skip the jersey or spandex dresses). If you're feeling unsure of what to wear, always ask the couple or wedding party if your outfit is appropriate for the occasion.

Can you wear a cocktail dress for a formal dress code?

Cocktail dresses are not completely off-limits, depending on the season and type of wedding. Make sure it leans towards the fancier side, though. Look for elevated cocktail pieces that are made of high-quality materials and fabrics. Neutrals or dark shades are always great too, but patterns and prints aren't out of the question.

Does formal attire always mean a long gown?

Gowns are typically expected at a formal wedding. “When in doubt, go long. But obviously we see many people go to extremely formal events (Met Gala, red carpets, galas, etc.) in short gowns. The key is to make sure you aren't underdressing. There are short gowns that have a super interesting design, like Jourdan Dunn's Zac Posen gown for the Met Gala, that absolutely still feel formal even if they're short,” said Bingham. That said, you don't have to wear one to every formal event. Elegant maxi dresses can work with this dress code, and midi ensembles are an acceptable option too. Remember, though, the dress code ultimately depends on the overall vibe the couple has established for their wedding.

The 27 Best Formal Wedding Guest Dresses of 2023

If you were invited to a wedding with a formal or black-tie optional dress code, you might be wondering what you're supposed to wear. The formal dress code can certainly feel confusing: it's not as casual or playful as your typical go-to cocktail dress, but it's also not as fancy as black-tie or white-tie attire.

“The biggest difference between a formal and informal dress is the length,” explains bridal stylist Kennedy Bingham. “Generally, a formal dress will be a longer length, as well as an elevated material. So instead of a spandex or polyester fabric, the same dress in a nice crepe or silk could add to the formality of a dress,” she said. For women, this means your formal attire could be floor-length gowns, sophisticated jumpsuits or pantsuits (a midi or tea-length dress can be appropriate in some cases) in an elegant fabric.

Sale Alert

The Lulus Make it Mesmerizing Jacquard Tiered Midi Dress is 24% off at lulus.com
The Pisarro Nights Beaded Mesh Column Gown is up to 40% off at nordstrom.com
The Amur Kin Strapless Pleated Midi Dress is 70% off at saksfifthavenue.com
The Maya Ruched Cowl-Neck Dress is 38% off at anthropologie.com

When in doubt, it’s always better to be a little fancier than casual. To help, we’ve built a collection of the best formal wedding guest dresses you can purchase now, whether you're attending a celebration in the fall, summer, spring, or winter season.

In This Article

Our Picks
What to Look For
FAQ
Why Trust Us

Show Me Your Mumu

View On Showmeyourmumu.com $228

Looking for a gorgeous, romantic dress for a formal occasion that doesn’t compete with the couple-to-be (but still lets you stand out)? Try this satin dress, which has unique details like a corset bodice, side slit, and flared hem. It’s available in multiple colors and just waiting to be dressed up with your favorite jewelry and heels.

Price at time of publish: $228

Size: XXS-XXL | Length: Floor-length | Materials: Polyester

Astr The Label

View On Revolve View On Astrthelabel.com $95

If you're going to opt for a midi dress that hits just below the knee, go for something in a neutral shade that is easy to dress up. This satin-finish dress is so pretty and versatile, and can truly look formal with the right accessories. It also comes in a variety of different colors and it's easy to move around in.

Price at time of publish: $95+

Size: XS-XL | Length: Tea-length | Materials: Polyester

Bloomingdale's

View On Bloomingdales $278

While black is a quintessential formalwear hue, you can certainly branch out and wear other colors. This metallic emerald green dress is a beautiful option, with a shimmering finish and a glamorous one-shoulder neckline.

Price at time of publish: $278

Size: 0-18 | Length: Floor-length | Materials: Polyester

Sachi & Babi

View On Sachinandbabi.com $895 View On Verishop.com $895

A formal gown with a belt? It exists! This unique Sachi & Babi gown features a full-length skirt and is definitely on the fancier side. We love the mix of slate and navy, a perfect color combination for a guest attending a winter wedding.

Price at time of publish: $895

Size: 0-22W | Length: Floor-length | Materials: Polyester, silk

Lulus

View On Lulus $99

This ruffled maxi dress features a feminine tiered skirt that makes it feel dressed up. The pretty lace design and ruffled sleeves are also flirty touches, and it comes in a few different colors for a variety of options.

Price at time of publish: $99

Size: XXS-3X | Length: Ankle-length | Materials: Cotton, nylon, polyester, spandex

Anthropologie

View On Nordstrom $458 View On Anthropologie $320 View On Saks Fifth Avenue $458

Stay comfortable on chilly autumn wedding days with this long-sleeve maxi dress. The pleated satin skirt is still airy enough to dance in, and the form-fitting waist and deep-v neckline add interest and shape.

Price at time of publish: $458

Size: 2-16, plus size available | Length: Ankle-length | Materials: Polyester

REVOLVE

View On Revolve

If you're not afraid to make a splash, opt for this bold, neon orange dress (there’s a bright green color, too.) Between the color and the silhouette, this look would be perfect for a formal wedding in a tropical locale. We love the high slit and asymmetrical neckline, too.

Price at time of publish: $250

Size: UK 6-16 | Length: Ankle-length | Materials: Polyester

Amsale

View On Anthropologie $495 View On Saks Fifth Avenue $495

This silky, off-the-shoulder column gown is effortlessly elegant with a straight skirt and beautiful draping throughout the bodice. It comes in a few different colors to match the venue and the vibe.

Price at time of publish: $495

Size: 0-16 | Length: Floor-length | Materials: Polyester

Reformation

View On Reformation $149 View On Saks Fifth Avenue $105 View On Anthropologie $298

This silk dress has a tight fit with a trendy straight neckline and thin straps. The green hue and delicate floral pattern make it a lovely pick for a spring wedding, but it also comes in brown if that better suits your style.

Price at time of publish: $209

Size: 14-24 | Length: Ankle-length | Materials: Silk

Nordstrom

View On Amazon $205 View On Nordstrom $248 View On Verishop.com $248

Sophisticated and classic, this one-shoulder gown exudes Old Hollywood vibes. It has a side slit and a slight train for a dramatic touch, and the thick crepe fabric makes it feel comfortable on chilly evenings.

Price at time of publish: $188+

Size: XXS-S | Length: Floor-length | Materials: Polyester, spandex

Anthropologie

View On Revolve View On Anthropologie $415 View On Anthropologie $435

The corset top and wrap style skirt of this dress give it an almost Grecian look, but with a trendy, modern feel. We love the bow detail at the waist and the contrast between the structured bodice and draped skirt.

Price at time of publish: $305

Size: 0-18 | Length: Floor-length | Materials: Polyester, spandex

Astr The Label

View On Astrthelabel.com $138

The halter neck and keyhole cutout make this dress feel perfect for a summer wedding. It comes in a variety of colors, but this burnt orange hue is unique and our personal favorite.

Price at time of publish: $138

Size: XS-XL | Length: Ankle-length | Materials: Polyester, elastane

Lulus

View On Lulus $59

If you think it's appropriate to wear a shorter hemline to a particular event (it's always a good idea to check with the hosts first), then this sleek midi dress is a great choice. It's a versatile option that can be dressed up or down, depending on the overall vibe of the wedding you're attending. Pro tip: black will likely feel the most formal.

Price at time of publish: $59

Size: XS-XL | Length: Tea-length | Materials: Polyester

Lulus

View On Lulus $69

As far as midi dresses go, this one is pretty formal, with gorgeous off-the-shoulder sleeves and flared hem. It's also sold at a great price point, making it an affordable option for anyone shopping on a budget.

Price at time of publish: $69

Size: XS-XL | Length: Tea-length | Materials: Rayon, nylon, spandex, polyester

Reformation

View On Reformation $114 View On Anthropologie $348

Made of delicate, flowy material, this maxi dress feels feminine and romantic. The soft floral print, sweetheart neckline, and off-the-shoulder sleeves are enough to make anyone fall in love.

Price at time of publish: $227

Size: 0-12 | Length: Ankle-length | Materials: Viscose

Lulus

View On Lulus $86

If you want something on the sexier side, this maxi dress is perfect: it features double slits, a plunging neckline, and a nearly backless design. It's a risqué look that still feels sophisticated.

Price at time of publish: $86

Size: XXS-3X | Length: Floor-length | Materials: Polyester

Lulus

View On Lulus $84

The purple floral print feels utterly unique when printed on a sumptuous velvet fabric—it's an excellent choice for fall or winter weddings. Though it slightly gives off a casual vibe, it could work at certain formal affairs.

Price at time of publish: $84

Size: XS-XL | Length: Tea-length | Materials: Viscose, nylon, polyester

Eloquii

View On Eloquii.com

This satin wrap dress is a versatile piece that can easily be dressed up or down. The vibrant green color will make you stand out from the crowd (in a good way) and we love the bow detail with the sash.

Price at time of publish: $130

Size: 14-28 | Length: Tea-length | Materials: Polyester

Reformation

View On Reformation $114

The ruffle and lace detail at the neckline would make this dress right at home in a different decade (or century), but it looks just as nice at a contemporary summer wedding. Choose from one of several pretty floral patterns or a solid hue.

Price at time of publish: $227

Size: XS-XL | Length: Ankle-length | Materials: Viscose

REVOLVE

View On Revolve $395 View On Saks Fifth Avenue $198 View On Bloomingdales

Formal doesn’t have to mean boring. This gown comes in bright colors and a unique pleated metallic fabric, The overall shape of the dress is classic—while showing off leg with the high-slit—but it stands out without going over the top (or outshining the partners-to-be).

Price at time of publish: $149+

Size: 6 (XS) - 14 (XL) | Length: Tea-length | Materials: Polyester

Show Me Your Mumu

View On Showmeyourmumu.com $198

Slip dresses are sexy and classic, and when paired with the right accessories can be a great pick for a formal wedding. This gown is dressed up with a cowl neckline and a skirt that is a cut on the bias. Choose from a number of colors to fit the wedding's mood.

Price at time of publish: $198

Size: XXS-XXL | Length: Maxi | Materials: Polyester

Anthropologie

View On Anthropologie $295

There's something so glamorous about a velvet maxi dress. This one features a beautiful column silhouette and off the shoulder sleeves, with a leg slit that makes it feel red carpet-ready. Any of the rich, striking colors are a fit for a formal wedding.

Price at time of publish: $295

Size: 0-19, plus-size available | Length: Floor-length | Materials: Velvet polyester, spandex

REVOLVE

View On Revolve

Not a dress person? Sabina Musayev x Revolve's shimmering metallic jumpsuit is dressy enough for a formal wedding. With a plunging neckline and pretty sleeves, it's a great choice for someone on the hunt for a dress alternative.

Price at time of publish: $282

Size: XS-XL | Length: Floor-length | Materials: Polyester

ASOS

View On Asos $187

Add some sparkle to your dress with sequins. This dress features lots of glittering, multi-hued embellishments in a geometric design. The full-length skirt and sweetheart neckline keep the look classic.

Price at time of publish: $162

Size: 0-14 | Length: Floor-length | Materials: Polyester

BHLDN Cali Satin Cowl-Neck Midi Slip Dress

Anthropologie

View On Anthropologie $168

This iconic gown one of the most highly-rated wedding guest dresses because it comes in so many different colors. The "storm cloud" hue is perfect for a summer wedding, but can be layered with a silk scarf for chillier days too.

Price at time of publish: $168

Size: 0-16 | Length: Tea-length | Materials: Polyester

ASOS

View On Asos $95

This sleek, metallic-looking champagne dress befits a lavish venue. It has a classic, slim silhouette and open back for a sexy look that still has a place at a formal event.

Price at time of publish: $67

Size: 0-14 | Length: Floor-length | Materials: Polyester

ASOS

View On Asos $209

This super sweet dress is just right for a formal garden wedding. The flutter sleeves, airy skirt, and floral embroidery set a whimsical vibe.

Price at time of publish: $209

Size: 0-14 | Length: Floor-length | Materials: Polyester

What to Look for in a Formal Wedding Guest Dress

Style: If you were invited to a wedding with formal attire, pull out all the stops and wear something fabulous. There's a time and a place for easy breezy cocktail dresses, but this isn't one of them. While “formal” can mean a lot of different things, in general, look for a long, glamorous dress in an elegant fabric. You can also take this as an opportunity to add extravagant jewelry. “The fun part is: the more formal, the more accessories! It's hard to go over the top with a super formal theme,” said Bingham.

Length: Longer hemlines are better for formal celebrations, so it's best to opt for a floor-length gown. “If you want to be safe rather than sorry, a chic, floor-length dress is always a good default,” said Bingham. While you can get away with a midi or tea-length number, be sure it's glamorous enough to fit the dress code. Additionally, a fancy jumpsuit would be lovely for those who are searching for something other than a dress. Skip out on anything with a short hemline, unless it’s been vetted or is on the fancier side.

Venue: If you’re unsure about the dress code for a particular wedding, a look at the venue can give you insight into what you should wear. For example, an outside, garden wedding might mean choosing an ankle- or tea-length gown, as well as dressing for the weather. A five-star hotel venue gives you the go-ahead for going super formal. But when in doubt, ask. “I've seen beautiful, formal backyard weddings and I've seen really gorgeous, casual weddings held in cathedrals. I would pick what feels the most true to your personal style,” said Bingham. In general, it’s better to err on the side of caution, and dress “up” instead of down.

FAQ

What does formal wedding guest attire mean?

Formal wedding guest attire typically means long (or midi) gowns and tuxedos or suits. It’s a step up from cocktail attire, but not as fancy as black- or white-tie. According to Bingham, look for a dress in a long length with an elevated material (skip the jersey or spandex dresses). If you're feeling unsure of what to wear, always ask the couple or wedding party if your outfit is appropriate for the occasion.
Can you wear a cocktail dress for a formal dress code?

Cocktail dresses are not completely off-limits, depending on the season and type of wedding. Make sure it leans towards the fancier side, though. Look for elevated cocktail pieces that are made of high-quality materials and fabrics. Neutrals or dark shades are always great too, but patterns and prints aren't out of the question.
Does formal attire always mean a long gown?

Gowns are typically expected at a formal wedding. “When in doubt, go long. But obviously we see many people go to extremely formal events (Met Gala, red carpets, galas, etc.) in short gowns. The key is to make sure you aren't underdressing. There are short gowns that have a super interesting design, like Jourdan Dunn's Zac Posen gown for the Met Gala, that absolutely still feel formal even if they're short,” said Bingham. That said, you don't have to wear one to every formal event. Elegant maxi dresses can work with this dress code, and midi ensembles are an acceptable option too. Remember, though, the dress code ultimately depends on the overall vibe the couple has established for their wedding.

Why Trust Us

Joline Buscemi is a freelance writer for Brides. She writes beauty and wellness stories for publications including HuffPost, Byrdie, and Glamour. For this story, she spoke with stylist Kennedy Bingham to learn how to choose a dress when attending a formal wedding.