Looking more like sisters than mother and daughters, the Four Weddings And A Funeral actress strolled down the catwalk with Rainey, 18, and Sarah Margaret, 14, at the Dressed to Kilt event.
The three women donned tartan dresses and a sporran for the annual fashion show in New York City, hosted by Sir Sean Connery and wife Lady Micheline.
Charming the catwalk: Andie MacDowell strides onto the catwalk with daughters Rainey, left, and Sarah Margaret, right, at the Dressed To Kilt show
Her youngest daughter Sarah also worn the same pattern, but kept covered up in a floor-length tiered strapless gown.
While Andie and Sarah embraced the tartan look, Rainey kept things subtle in a simple little black dress, but gave a nod to the Scottish theme with a sporran as a handbag.
The teenagers have not only inherited their mother's good looks, but also her flowing brown hair.
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Missing out on all the fun was Andie's 23-year-old son Justin, her third child from her former marriage to Paul Qualley, which ended in 1999.
Working it: Andie, Rainey and Sarah take a bow at the climax of the show
Andie has Scottish roots and attributes them to her good porridge-making skills.
She said: 'I love my oats, and I could definitely be the world championship porridge maker - and eater.
'I have an aunt who has done a fair amount of genealogy and I have Scottish relatives on my grandmother's side.'
Andie and her daughters joined a host of stars at the 7th annual Dressed to Kilt event at the M2 Lounge, organised by the Friends of Scotland group to celebrate Tartan Week.
Tickets started from $99 a person, with proceeds going to the Paralysed Veterans of America, the Wounded Warriors Organisation and the Erskine Hospital in Scotland.
What's under your kilt? Mike Myers teases the audience, while Gossip Girl hunk Ed Westwick keeps his cool in his Scottish ensemble
Joining Andie on the catwalk was comedian Mike Myers, Gossip Girl actor Ed Westwick, Scottish singer Sandi Thom and X Factor 2007 winner Leon Jackson.Canadian actor Mike, who played Scottish ogre Shrek in the hit trilogy, is proud of his Scottish heritage and jumped at the chance to join in.
Walking down the catwalk in his Canadian jockey shirt and New Balance trainers, the 45-year-old teased the audiences by lifting up his kilt.
English actor Ed, 21, who plays Gossip Girl fashion lover Chuck Bass, went for a more muted combination of brown kilt and checked waistcoat.
Puppy love: Dressed to Kilt host Sir Sean Connery cuddles a tartan-wearing dog with his wife Lady Micheline
Scottish stars: Sandi Thom wore a figure-hugging blue dress, while X Factor winner Leon Jackson embraced his Scottish heritage
I Wish I Was A Punk Rocker singer Sandi, 27, also took to the catwalk.After leaving her record label RCA after poor sales of her second album The Pink and the Lily, Sandi is now in America, where she hopes to sign with a label.
While many of the stars suited their kilts, Miss Scotland Stephanie Willemse, 20, made a fashion faux pas with her catwalk outfit.
Strolling down the aisle in a white dressed covered in tartan bows, the beauty queen looked like a toilet roll cover with her huge skirt.
Meringue moment: Miss Scotland Stephanie Willemse walked down the catwalk in an OTT white dress