Selecting a suitable mother-of-the-bride or groom outfit is one of the biggest personal considerations you have to make regarding your child's wedding day. While you've likely helped with a few planning details, finalizing your own ensemble is essential; and if the dress code is on the formal side, you might be wondering what sort of outfits are appropriate. The good news, though, is that if you ever wanted to dress to the nines, this is the time to break out your finest fashions. In fact, formal mother-of-the-bride dresses are some of the best pieces to shop for since they can really showcase your personal style.
But before listing out our favorite fancy mother-of-the-bride or groom looks, it's important to highlight what "formal" actually means. This isn't just a code word for "nice-looking," as "formal" is a legitimate dress code that falls between black tie and cocktail. For formal weddings, think of long gowns in luxe fabrics, or high-end midi dresses with embellishments and special detailing. Beyond dress code and fabric, consider the season and venue, as long-sleeve numbers can an excellent choice for indoor, evening, and winter events.
It's also a good idea to check in with the couple of honor before buying your day-of look to see if they have any preferences by way of color or style. Even though this is your outfit, you want to be sure your look doesn't clash with the bridal party or detract from the celebration.
To help narrow down your options, we've rounded up the best formal mother-of-the-bride or groom dresses that will dazzle and delight as you watch your child say "I do,"
Most Glamorous
Galina Signature Strapless Corset Gown with Tulle Trumpet Skirt
Formal weddings are the perfect opportunity to don a gown straight out of your fairytale dreams. This tulle and lace corset number from Galina Signature has the ideal amount of structure and sparkle to support and shine all night long.
Size: 2–24 | Materials: Lace, tulle | Length: Floor
Best for a Boho Wedding
Revelry Amelia Chiffon Dress
Available in over 40 different hues, Revelry's Amelia dress is made from the softest chiffon and is perfect for outdoor, desert, or bohemian celebrations. Flutter sleeves, ruffled tiers, and a modest V-neckline exude romance for any special occasion.
Size: 0–32 | Materials: Chiffon | Length: Floor
Most Elegant
Amsale Pryce Gown
It doesn't get more elegant than Amsale's silky Pryce dress, which comes in navy, green, and natural hues. Between the asymmetrical, off-the-shoulder neckline and flattering column silhouette, this pristine style is suitable for the most distinguished of occasions.
Size: 0–16 | Materials: Polyester | Length: Floor
Best Vintage-Inspired
Tadashi Shoji Odette Sequin Dress
Whether you select the Odette dress in silver or gold, Tadashi Shoji's spectacular sequin and lace gown was made for vintage lovers. It features a bateau neckline and an all-over floral pattern, both of which stand out as stunning formalwear details. The best part? You can keep jewelry simple to really let this beauty shine.
Size: 0–18 | Materials: Sequin, lace | Length: Floor
Most Convenient
Alex Evenings Short Shift Dress
When you need a dress, and you need it fast, Amazon is always the answer. With 13 color options that vary slightly in design, not to mention free returns, this crepe cocktail dress from Alex Evenings is an easy choice for rehearsal dinners and weddings alike.
Size: 4–18 | Materials: Crepe | Length: Knee
Best Understated Favorite
Theia Edna Twist Shawl Column Gown
With long sleeves and a square neckline, this column gown from Theia is unassuming in design but stunning in execution. The twist drape bodice frames the décolletage, and the slight glimmer of the knit fabric gives the overall design an added touch of splendor.
Size: 0–16 | Materials: Nylon | Length: Floor
Best for a Summer Wedding
Ulla Johnson Avery Midi Dress
Finding a mother-of-the-bride or groom dress for the summer is no easy feat, but this seasonal tiered frock from Ulla Johnson checks off all the boxes. The empire waistline flatters, the cotton-poplin fabric keeps you cool, and the sleeveless design can easily be dressed up or down with heels and accessories.
Size: 0–12 | Materials: Cotton-poplin | Length: Midi
Best Off-the-Shoulder
Revelry Court Dress
Something about an off-the-shoulder neckline and rich velvet material feels utterly glam, which is why Revelry's Court dress is a favorite for everyone from moms to brides and bridesmaids. No matter which of the 25 color options you select, you'll be sure to collect major compliments on the big day.
Size: 0–32 | Materials: Velvet | Length: Floor
Best for a Spring Wedding
Needle & Thread Enchanted Meadow Gown
Springtime celebrations and flower-filled affairs call for an equally enchanting wedding look, which is why we adore this lace design from Needle & Thread. From the scattered sequins, floral design, and intricate frills, this is one gown that seamlessly exemplifies the season.
Size: 0–14 | Materials: Lace, sequins, polyester | Length: Floor
Best for a Winter Wedding
Amsale Draped Long Sleeve Gown
Luxe fabrics and long sleeves are must-haves for winter weddings, and this draped Amsale design is a dress to buy for the cooler months. Wear your hair up and throw on some dangling earrings to compliment the high neckline and sleek A-line cut.
Size: 00–28 | Materials: Satin | Length: Floor
Best for a Daytime Wedding
Azazie Sanna Dress
With 18 color options—each as beautiful as the last—this lace tea-length dress from Azazie is an easy fit for any formal daytime wedding. The shorter hemline is ideal for afternoon "I dos," while the bateau neckline, cap sleeves, and removable belt nod to the elegance of the occasion.
Size: 0–30, custom sizing | Materials: Lace | Length: Midi
Best Slip-Inspired
Jenny Yoo Maxine Dress
Slip dresses always hint at sultry sophistication, but Jenny Yoo's Maxine dress elevates the classic design with a flattering scoop neck, built-in cups, and a bias-cut skirt. Our favorite aspect is the burnout pattern which adds extra texture to the sleek silhouette.
Size: 0–18 | Materials: Satin | Length: Floor
Most Whimsical
Mac Duggal Faux Wrap Long Sleeve Tiered Gown
Whether worn in the sage or mocha hue, this fluffy, floaty, tiered gown from Mac Duggal is full of whimsy and wonder. Long sheer sleeves, a pleated bodice, and a flowing tiered skirt make this faux wrap design a magical mother-of-the-bride choice.
Size: 2–18 | Materials: Polyester | Length: Floor
Best for a Beach Wedding
Adrianna Papell Floral-Print Gown
Balancing formalwear with a beachy vibe can be tricky, but this breezy faux wrap gown marries the two aesthetics perfectly. The V-neckline, pleated details, and floor-length hemline adhere to the dress code, while the mermaid slit skirt and flutter sleeves look organic on sandy shores.
Size: 0–20 | Materials: Polyester | Length: Floor
Best Ball Gown
Amsale Metallic Ball Gown
There are few opportunities in life to wear a ball gown, and your son or daughter's formal wedding is definitely one of them! This exquisite strapless design from Amsale is hard to top, especially with the metallic floral detailing that trickles from bodice to skirt. Pair the look with the matching shaw for added style and coverage.
Size: 00–28 | Materials: Metallic cloqué | Length: Floor
Best Sequins
Revelry Gwen Sequin Dress
Sequins are a favorite for formal weddings, and Revelry's Gwen dress offers something truly special with its twisted front detail and graceful flutter sleeves. Coming in sizes 0 to 32, this flattering design is also made in velvet, chiffon, and satin.
Size: 0–32 | Materials: Chiffon | Length: Floor
Best Convertible
Azazie Ines Dress
Minimalist in design and subtly sexy, Azazie's Ines dress features a fitted mermaid silhouette that hugs your curves without feeling too clingy. The best part is the convertible cowl neckline, which can be adjusted depending on your day-of vision. And it comes in 20 colors, so you're sure to find something that fits the wedding theme and your unique style.
Size: 0–30, custom sizing | Materials: Mesh | Length: Floor
Best Floral Print
Theia Jada Wrap Draped Gown
While many floral print mother-of-the-bride dresses feature light pastels, this Theia draped gown boasts bold-colored blooms that nod to the formality and luxury of the day. With its asymmetrical bodice, A-line silhouette, and crushed organza skirt, this dreamy design balances the delicate with the dramatic.
Size: 0–16 | Materials: Organza | Length: Floor
Best for a Holiday Wedding
Needle & Thread Alina Gown
There's something truly special about a holiday wedding, and as the mother of the bride or groom, your dress helps set the stage for the big event. This 1940s-style sequin ankle gown from Needle & Thread—which also comes in green, white, and pink—pairs perfectly with hot cocoa bars and snow-filled photo ops.
Size: 0–14 | Materials: Sequin, tulle, polyester | Length: Ankle
Best Modest
Azazie Dion Mother-of-the-Bride Dress
A favorite for mothers of the bride or groom, this crepe sheath gown from Azazie is complete with a chiffon overlay that can be worn tied or as a loose train down the back. Select the style in one of over 20 colors for a look that's sure to wow at any formal wedding.
Size: 0–30, custom sizing | Materials: Chiffon, crepe | Length: Floor
Best for a Fall Wedding
JJ's House A-Line Scoop Neck Lace Dress
If the wedding will be held in the fall, this stunning lace and chiffon number is an excellent choice for both indoor and outdoor venues. It's available in over 35 colors, but we recommend deeper, moodier hues for autumn, like cabernet, plum, or forest green.
Size: 0–26 | Materials: Chiffon, lace | Length: Ankle
Best Pleated
Mac Duggal Pleated High Neck Gown
The accordion pleats on this satin A-line gown create beautiful movement as you walk around or dance the night away. We also love the high neckline, voluminous sleeves, and subtle side slit.
Size: 0–14 | Materials: Satin | Length: Floor
What to Look For in a Formal Mother-of-the-Bride or Groom Dress
Dress code
When searching for a formal mother-of-the-bride or groom dress, you want to first consider the dress code. Even though you're a VIP, that doesn't mean you can ignore the couple's chosen attire preferences. "Formal" means you should ideally wear a floor-length gown, like the Amsale Pryce Off-Shoulder Satin Column Gown, but a fancy midi or cocktail dress could work as long as it's more elegant than your standard little black dress.
Fabric
Fabric-wise, think of luxe options such as crepe, chiffon, and satin, all while paying attention to the season. As with the Revelry Court Velvet Dress, velvet leans more formal, though it's also a heavy material so it could get too hot at spring or summer events. For warm-weather occasions, look for something made of lighter-weight fabric, like the cotton-poplin Ulla Johnson Avery Midi Dress.
Sleeve length and style
The same concept goes for selecting sleeve lengths, too. As with the Amsale Draped Long Sleeve Gown, longer sleeves tend to be better suited for indoor or evening nuptials held in the fall or winter—though it really depends on the location. In any case, it's always a good idea to bring along a jacket or shawl if your dress has shorter sleeves, regardless of the season, just in case the venue gets chilly or if you want more coverage.
Why Trust Us
Contributing expert writer Rachel Varina is a full-time freelancer with over 10 years of editorial experience and seven years of experience in the wedding industry. Her work has been featured in Cosmopolitan, Women’s Health, Elite Daily, Betches, Zola, and more.