Not Casual, Not Black Tie: 21 Gorgeous Semi-Formal Wedding Guest Dresses (2024)

Shopping for multiple dresses to wear to different weddings can get expensive, but luckily there are tons of budget-friendly options out there. Consider this stylish and under-$100 tiered midi dress from Lulu’s, available in six gorgeous colors. We especially love this sweet lavender option for spring.

Size: XXS-XL | Materials: Polyester | Length: Midi

This satin number is the perfect balance of sexy and chic, making it appropriate for any semi-formal wedding you may be attending.The striking emerald green hue is sure to make a statement, while the one-shoulder neckline, draped skirt, and high-slit create dynamic and sexy details.

Size: XS-XL | Materials: Sheen satin | Length: Midi

A classic wrap dress is always a go-to for semi-formal occasions, and we love this pink blush option from Zimmermann—though it's also available in black, sage, and biscuit. Style this feminine frock with gold jewelry and a pair of nude pumps.

Size: XS-L | Materials: Silk charmeuse | Length: Mini

While this dress seems formal at a glance, the short hemline adds a bit of whimsy to a sophisticated piece. We can picture this looking extra chic when paired with delicate pearl accessories and strappy heels.

Size: XXS-XL | Materials: Viscose, rayon | Length: Mini

Heading to a semi-formal wedding this spring? You won’t want to miss this stylish pleated midi from Lulus. These pretty pink florals would look gorgeous for a garden ceremony, but it's also available in a variety of other colors and prints that work well for the season.

Size: XS-XL | Materials: Polyester | Length: Midi

Get ready to swoon over this charming mini dress that features an intricate mix of subtle patterns and cuts in a romantic ocean blue color that's perfect for beach weddings.The high-neck collar, draping sleeves, and tiered hemline make this a no-fail option.

Size: 2-10 | Materials: Viscose, polyester | Length: Mini

Reformation is known for its semi-formal dresses, so it’s hard to pick a favorite. However, this pastel purple floral print number is definitely a winner.It also comes in several other beautiful colors and prints worth considering depending on the season and venue.

Size: 0-12 | Materials: Viscose | Length: Midi

This midi dress comes in a striking deep purple color that is undeniably stunning. The eye-catching tiered detailing on the puff sleeves, the deep V-neckline, and the flattering tie waistband make it worth the splurge. We also love the tuberose option for a daytime summer wedding.

Size: 00-16 | Materials: Polyester | Length: Midi

This floral-printed mini is a sweet and romantic option for daytime wedding festivities. The puff sleeves add a bit of drama to the look, while the high neckline and tiered skirt add a flattering and unique touch.

Size: XXS-XL | Materials: Viscose | Length: Mini

This classic blue mini dress is elegant enough to wear to a semi-formal wedding while still having a bit of an edge. We love the delicate sweetheart neckline and the subtle side slit for a sexy flair.

Size: XS-L | Materials: Satin | Length: Mini

Deep wine colors are always a favorite when it comes to fall weddings, and they can easily transition from day to night. This chic gown has a cowl neckline, an open back cut-out, and a side slit for a fresh and dynamic design.

Size: XS-XL | Materials: Polyester, elastane | Length: Midi

For a playful, summer semi-formal wedding ensemble, don’t miss this ruffled strapless dress. The blush pink adds a romantic element to this already sweet silhouette. Pair it will neutral accessories for a simple yet pretty look.

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

This elegant and conservative dress will stun at any semi-formal spring or summer celebration. The unique flutter sleeve adds a bit of surprise to an otherwise classic cut. We especially love this light blue hue for a beachside ceremony.

Size: 0-14 | Materials: Stretch crepe | Length: Mini

Comfort is key when it comes to searching for dresses for wedding season, which is why we are such fans of this relaxed number from River Island.Not only is it flowy and comfortable, but the intricate hemline and delicate yet colorful print also make fun and bold.

Size: 2-14 | Materials: Polyester | Length: Midi

While cutouts may be a daring choice for a wedding, we love the simplicity of this dress. The brown color is a chic and fashion-forward option at any time of the year, but you can also choose an all-black or terracotta color.

Size: 2-12 | Materials: Viscose rayon | Length: Midi

When in doubt, a slip dress is always a safe bet for a semi-formal affair. This midi comes in 14 different colors, so there is an option for any and every style. No matter the season, this is a style you can wear again and again.

Size: 0-22W | Materials: Satin charmeuse | Length: Midi

Moms-to-be no longer have to sacrifice style for functionality. This satiny maternity dress shows off your belly while staying effortlessly chic for any semi-formal affair. Pair it with flats for a simple and comfortable fit.

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

Heading to a semi-formal garden wedding? Opt for this pretty pink dress that has a relaxed and romantic vibe without being too casual. Pair it with simple kitten heals and loose waves for an ultra-feminine finish.

Size: XS-L | Materials: Cotton | Length: Midi

When the occasion is semi-formal, this one-shoulder figure-flattering dress is a stylish option. This midi dress from Dress the Population is sleeveless and has two panels that flow from the single-tie shoulder. Available in 14 colors, including burgundy, blue, orange, pink, and black, this classic midi dress is an elegant choice.

Size: XXS-XXL | Materials: Polyester, spandex | Length: Midi

You’ll be wearing this little black dress from Reformation to rehearsal dinners and semi-formal weddings all year. It has a fitted bodice and a full skirt with pockets on each side. The strappy back is adjustable with a tie at the back of the dress. It’s made with a stretch poplin fabric that’s comfortable and easy to care for. Looking for another color? This adorable dress is also available in a lovely shade of emerald green.

Size: 0-12 | Materials: Organic cotton, spandex | Length: Midi

This elegant floor-length dress from Azazie can effortlessly take you from semi-formal to formal events. Made of chiffon, the dress has a fitted sleeveless bodice and a flowy pleated skirt with pockets on both sides. It has an A-line silhouette, a scoop neckline, and a slit that starts just above the left knee. The dress is available in an extended size range and can also be custom-made to order. There are over 60 colors available, from classic black to fuchsia, lavender, and jade, so you’re sure to find one to suit your taste and event.

Size: 0-30 | Materials: Chiffon | Length: Floor

FAQ

• Where can I shop for a semi-formal dress?

  You can find a wide selection of semi-formal dresses at department stores such as Nordstrom, Bloomingdale’s, or Macy’s. In addition, brands like Reformation, Lulus, and Revolve are also great options for this dress code.

• How should I style my semi-formal look?

  Accessories play an important role in semi-formal attire because they can completely transform a look. If you’re worried that your ensemble may be too casual, add a statement clutch and heels. On the other hand, if you're hoping to dress down your look, you may want to opt for flats or chic sandals, depending on the time of day and the location of the wedding.

• Is there a difference between co*cktail and semi-formal attire?

  Semi-formal and co*cktail attire have been known to be interchangeable, but in some cases, co*cktail attire is a small step above semi-formal. While semi-formal can include elevated sundresses, this may not be appropriate for a co*cktail dress code. If you are genuinely stuck on whether your dress is suitable, consult with the hosts to see what they recommend.

• What colors should you wear to a semi-formal wedding?

  Unlike black-tie events, semi-formal weddings don’t adhere to a strict color palette. If you’re attending a fall or winter wedding, you might want to choose darker colors and solid patterns, like ASTR The Label’s Gracie Satin Midi Dress. For spring and summer nuptials, prints and florals, like the Reformation Twilight Dress, are completely appropriate. Steer clear of traditional bridal colors like white and off-white, and if you’re in doubt about what colors are appropriate to wear, ask the bride and groom.

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