What does DK stand for on the fashion label DKNY?

Donna Karan (born Donna Ivy Faske; October 2, 1948) worked for 15 years at Anne Klein, including 10 as its head designer. In 1984 Karan and her late husband Stephan Weiss were offered the opportunity to start their own business by the owner of Anne Klein, Takihyo LLC.

Donna Karan's mainline label Donna Karan New York, also referred as Donna Karan Collection, debuted in 1985 with the women's collection "Seven Easy Pieces", "where a handful of interchangeable items work together to create an entire wardrobe that goes from day to evening, week day to weekend, season to season". In July 1991 she launched her first menswear collection.

The "New York" part on the label is there to set "the pace, the attitude" of the fashion house's offering.