Who let the dogs out?

Downtown’s Gauntlett Cheng, an underground brand beloved by Kim Kardashian and Rihanna, sent eight pooches down the catwalk for its Sunday Fashion Week show.

Dog-loving label leaders Esther Gauntlett and Jenny Cheng presented their latest gender-bending collection titled “Happy and Healthy” at St. Mark’s Church-in-the-Bowery.

Childlike floral dresses and Swiss-cheese-inspired knits (a fan-favorite fabric from their second collection) made an appearance at the parish hall, along with zany outerwear stamped with a kitschy print of suns, moons and puppies.

The best part: Close friends and relatives of the designers, including Gauntlett’s mother, were enlisted to model these unconventional outfits alongside their own precious pets, who rocked pup-size variations of the human looks.