Poppy Delevingne (born 1986) is a British model and socialite.

Delevingne was spotted by Storm Model Management founder Sarah Doukas.

She has modelled for brands such as Laura Ashley, Anya Hindmarch, Paige Adams, Mango, Alberta Ferretti and Burberry, has walked the runway for brands including Julien Macdonald and has worked with photographers such as Terry Richardson. Having caught the eye of designer Marc Jacobs, she recently became the face of the Louis Vuitton pre-autumn/winter 2012-13 collection.

Delevingne is a Young Ambassador for the British Fashion Council and a Chanel brand ambassador. She is a regular on the front row at London Fashion Week.

Delevingne is the granddaughter of former English Heritage boss Sir Jocelyn Stevens. Her mother Pandora is a personal shopper, and her father Charles is a property developer. Delevingne grew up in a Belgravia mansion, and attended the independent Bedales School. Her younger sister is the model Cara Delevingne.

Delevingne is a muse and friend of Matthew Williamson, and previously shared a New York flat with the actress Sienna Miller. She is currently engaged to James Cook.