Katie Hillier is a designer, known for her work in accessories and fine jewellery. She has consulted creatively for brands including Stella McCartney, House of Holland and Victoria Beckham.
Hillier studied at the University of Westminster in London. She began her career at Luella, and was instrumental in many of the most successful handbag styles in British fashion, Business of Fashion noting that '[Hillier's] work at Luella has often been credited as the start of the “It” bag movement of the early 2000s.'
In 2009, she was awarded the Accessory Designer of the Year at the British Fashion Awards, and was named one of ELLE magazine's '50 Most Influential People in Fashion.'
In 2013, Hillier was appointed the creative director of Marc by Marc Jacobs. When the label was discontinued in 2015, she launched her own label with long-time collaborator Luella Bartley. 2015 also saw the designer launch a fine jewellery range called Hillier London.
In 2018, Katie Hillier joined ready-to-wear and accessories label J&M Davidson as creative director.