Nicholai Olivia "Nicky" Hilton (born October 5, 1983) is an American fashion model, socialite, celebutante, and fashion designer. She is a great-granddaughter of Conrad Hilton (founder of Hilton Hotels).
Hilton was born in New York City, and grew up in Los Angeles. Her father is Richard Hilton, a businessman, and her mother is Kathy Hilton (née Avanzino), a socialite and actress. She grew up with three siblings: Paris Hilton, Barron Nicholas Hilton II, and Conrad Hughes Hilton III. She was raised Catholic and attended Convent of the Sacred Heart and graduated in 2001.
In 2004, Hilton launched her own clothing line. She also designed a line of handbags for Japanese company Samantha Thavasa.