Nicholai Olivia "Nicky" Rothschild is an American socialite, fashion designer and model. She is a member of the Hilton family by birth, and a member of the Rothschild family through her marriage to James Rothschild, a grandson of Victor Rothschild, 3rd Baron Rothschild, in 2015.

The Hilton family is an American family that originally comes from Kløfta, Norway, and spans over four generations from New York City and Los Angeles. The family members hold varying degrees of power, wealth and status as socialites in the United States. They are widely known for the Hilton Hotels & Resorts Group which was established by Conrad Hilton in 1919 when he bought his first hotel.