Lilly Daché was a French-born American milliner and fashion merchandiser. She started her career in a small bonnet shop, advanced to being a sales lady at Macy's department store, and from there started her own hat business. She was at the peak of her business career in the 1930s and 1940s. Her contributions to millinery were well-known custom-designed fashion hats for wealthy women, celebrates, socialites, and movie stars. Her hats cost about ten times the average cost of a lady's hat. Her main hat business was in New York City with branches in Paris. Later in her career she expanded her fashion line to include dresses, perfume, and jewelry.