Nathaniel Philip Victor James Rothschild, 5th Baron Rothschild (born 12 July 1971), known as Nathaniel Philip Rothschild or Nat Rothschild, is a British-born Canadian financier and hereditary peer, who is a member of the Rothschild banking family of England. He has settled in Switzerland and is also a naturalised Montenegrin citizen.

Rothschild became the 5th Baron Rothschild on the death of his father, on 26 February 2024.