15 Mother-of-the-Bride Dresses Inspired by Diane Keaton's Most Fashionable Moments

Here's how to channel the actress's most iconic and bold looks.

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Diane Keaton

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Diane Keaton is the mother-of-the-bride style inspiration you didn’t know you needed! While she often favors classic silhouettes (and lots of suits), her love of bold and glamorous details is what makes her the perfect person to turn to for a timeless yet fresh look. 

From a turtleneck Ralph Lauren gown to a sequin Gucci suit, Keaton’s red carpet ensembles have garnered attention for decades due to her eye for unique and elegant fashion. And though she has a signature style of neutral tones and tailored garments, she still finds a way to step out of the box with her outfits, whether it’s with a spirited pattern or sequin embellishments. What we love most, however, is her ability to elevate a look with a statement accessory. Keaton often gravitates toward heeled boots, beaded jewelry, and vintage hats for a head-turning result that is easily replicable. 

So, for mothers of the bride or groom who are in need of a few celeb-worthy wedding day pieces, we rounded up five of Diane Keaton’s best red carpet ensembles—plus, a few recommendations on how to recreate her looks yourself. 

Diane Keaton

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Keaton brought her signature style to the Ralph Lauren SS23 runway show in a menswear-inspired look by the fashion brand. She paired a black tuxedo coat with matching wide-leg trousers and a white button-down shirt. A round top hat and black rings completed this sophisticated yet stylish ensemble. 

For a Black-Tie Wedding

Ieena for Mac Duggal Long Sleeve Tuxedo Gown

Long Sleeve Tuxedo Gown

Courtesy of Nordstrom

Size: 2-16 | Materials: Polyester | Length: Floor

If you’re attending a black-tie wedding, consider this tuxedo gown from Mac Duggal. It incorporates the satin lapels and floor-grazing hemline of Keaton’s Ralph Lauren ensemble, in addition to a thigh-high slit and a draped bodice. Keep it elegant and style your look with silver ankle-strap heels and matching cluster earrings. 

Price at time of publish: $398

Best Strapless

Aidan by Aidan Mattox Strapless Column Gown

Strapless Tuxedo Column Gown

Courtesy of Saks Fifth Avenue

Size: 0-18 | Materials: Satin and polyester | Length: Ankle

Taking a more modern approach to Keaton’s look, we love this strapless gown, from Aidan by Aidan Mattox, for any formal wedding. The neckline, with satin folded lapels, emulates the celeb’s tuxedo coat, but the thigh-high slit brings a sultry vibe to this polished look. 

Price at time of publish: $245

Best Cocktail Attire

Lauren Ralph Lauren Cocktail Dress

Tuxedo Cocktail Dress

Courtesy of Bloomingdale's

Size: 0-18 | Materials: Polyester | Length: Mini

With a knee-length hemline and bow-tie waist, this Lauren Ralph Lauren cocktail dress is a flirty and fun rendition of Keaton’s black suit. Style with a pair of black heels for a monochromatic look or pink-heeled mules for a striking pop of color. 

Price at time of publish: $245

Diane Keaton

Amy Sussman / Getty Images

For the LACMA Art+Film Gala in 2021, Keaton made a grand entrance in an eye-catching blue sequin suit by Gucci. With such a dazzling outfit, she kept her accessories simple, styling the embellished suit with a black beret and leather ankle boots. 

Best Wrap Dress

Aqua Sequin Twist Front Long Sleeve Gown

Navy Sequin Twist Front Long Sleeve Gown

Courtesy of Bloomingdale's

Size: 0-18 | Materials: Nylon | Length: Ankle

To capture Keaton’s bold and elegant style, shop this wrap dress from Aqua. The addition of blouson sleeves and a thigh-high slit make this sequin number the perfect choice for a formal wedding in the fall or winter seasons. 

Price at time of publish: $206

Most Elegant

Badgley Mischka Sequin Floor-Length Gown

Navy Sequin Floor-Length Gown

Courtesy of Saks Fifth Avenue

Size: 4-16 | Materials: Polyester | Length: Floor

Embrace the sophisticated nature of Keaton’s ensemble with this embellished off-the-shoulder gown by Badgley Mischka. Complement the deep blue hue and accessorize your look with black pumps and silver drop earrings. 

Price at time of publish: $850

Best High Neckline

Mac Duggal Sequin Sleeveless Sheath Gown

Navy Sequin Sleeveless Sheath Gown

Courtesy of Saks Fifth Avenue

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

You’re guaranteed to turn heads in this boat neck gown by Mac Duggal, which is fully decorated in midnight blue sequins. It also features a draped train, a dramatic bow detail, and a low back for a glamorous and fashion-forward look.

Price at time of publish: $398

Diane Keaton

Steve Granitz / Getty Images

At the 2004 Golden Globes, Keaton took a favorable fashion risk with this white ankle-length gown that featured a high collar, long sleeves, and a tulle underlay. She added an extra cool factor to the bold ensemble by accessorizing it with black sunglasses, white satin gloves, a long pearl necklace, and glitter stiletto boots. While mothers of the bride and groom should stay away from wearing white, if the couple has requested you wear this hue, this look will work for a more formal wedding. 

Best Midi

Amsale Mikado A-Line Midi Dress

White A-Line Midi Dress

Courtesy of Saks Fifth Avenue

Size: 2-16 | Materials: Mikado | Length: Midi

For a slightly shorter option, consider this midi dress from Amsale. It borrows elements from Keaton’s look—like the A-line silhouette and high neckline— but forgoes the sleeves, which makes it perfect for a summertime wedding. This sleek ensemble would also pair nicely with a sparkly shoe, like the stiletto boots Keaton wore on the red carpet. 

Price at time of publish: $695

Best Lace

Sachin & Babi Cecelia Dress

Cecelia Dress

Sachin & Babi 

Size: 0-14 | Materials: Poly faille and floral lace  | Length: Tea

A white dress might seem traditional, but this Sachin & Babi number has just the right amount of contemporary details. From the floral lace bodice to the tea-length hemline, this chic getup is a stunning choice for any wedding event. Take a style cue from Keaton and accessorize with pearl jewelry and embellished heels. 

Price at time of publish: $965

Most Sophisticated

Self-Portrait Pleated Woven Midi Dress

white Pleated woven midi dress

Courtesy of Selfridges

Size: 4-16 | Materials: Tweed, satin, and lace | Length: Midi

If you like the idea of a coat dress, this option from Self-Portrait is a more youthful take on the formal look. The pleated lace skirt brings an ethereal feel to the ensemble, while the tweed jacket maintains the elegance of Keaton’s style. 

Price at time of publish: $440

Diane Keaton

Jemal Countess / Getty Images

Keaton stunned in another two-piece ensemble at the 2008 L'Oreal Legends Gala. The playful getup featured a floral midi skirt and a fitted black blazer, which were both tied together with black Mary Jane heels, a pearl necklace, and a cocktail ring.

Best Tulle

Mac Duggal Embellished Illusion Butterfly Sleeve V-Neck Gown


Courtesy of Mac Duggal

Size: 2-20 | Materials: Tulle | Length: Floor

Spring is in bloom with this gorgeous tulle number from Mac Duggal! Even though it opts for dainty floral embroidery instead of an oversized pattern, this dress will still make a statement at any springtime celebration due to its butterfly sleeves and pleated V-neckline.

Price at time of publish: $698

Best Splurge

Amsale Metallic Tea Length Dress

Amsale Metallic Tea Length Dress


Size: 00-28 | Materials: Metallic cloque | Length: Tea

If you’re going to splurge on your mother-of-the-bride ensemble, you can’t go wrong with this midi dress from Amsale. It features a metallic floral print and sweetheart neckline for a look that is elegant and modern. Plus, you can wear it again for your next date night or formal wedding. 

Price at time of publish: $1,895

Best Long Sleeve

Tadashi Shoji A-Line Floral Applique Net Gown

A-Line Floral Applique Net Gown

Courtesy of Neiman Marcus

Size: 2-16 | Materials: Polyester | Length: Floor

Channel the oversized florals in Keaton's look with this gorgeous floor-length gown by Tadashi Shoji. Style yours with pearl jewelry and white ankle-strap heels for a chic result. 

Price at time of publish: $548

Diane Keaton

FilmMagic / Getty Images

In one of Keaton’s more subtle fashion moments, she wore a black turtleneck gown by Ralph Lauren to the 2006 L'Oreal Legends Gala. The actress added a glamorous touch to this simple ensemble by accessorizing it with long beaded necklaces and blue-tinted glasses. 

Most Similar

Halston Aaliyah Silk Jersey Dress


Courtesy of Halston

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

This mock-neck number from Halston is a spot-on replica of Keaton’s Ralph Lauren gown. While it does fall on the more casual side, you can easily elevate the dress for a semi-formal wedding with statement jewelry (à la Keaton) and black platform heels. 

Price at time of publish: $380

Most Modern

Solace London Saren One-Shoulder Maxi Dress

Saren one-shoulder maxi dress

Courtesy fo Farfetch

Size: XXS- XXXL | Materials: Crepe | Length: Maxi

This maxi dress keeps the same style as Keaton’s ensemble but features an asymmetrical neckline and cut-out detail for an effortlessly stylish look. Follow the celeb’s lead and pair this chic frock with statement accessories, such as gemstone drop earrings and embellished heels. 

Price at time of publish: $410

Best Details

Amsale Stretch Crepe Gown

black long sleeve gown

Courtesy of Amsale

Size: 00-28 | Materials: Crepe | Length: Floor

From the sequin bodice to the square neckline, this floor-length gown from Amsale puts a modern and glamorous twist on Keaton’s look. Pair this sleek number with gold hoop earrings and matching ankle-strap heels. 

Price at time of publish: $795

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