Nathaniel Philip Victor James "Nat" Rothschild (born 12 July 1971) is a British-born financier who has settled in Switzerland, and a member of the prominent Rothschild family. He is chairman of JNR Limited, an investment advisory business primarily focused on emerging markets in the metals, mining and resources sector. He was co-chairman of Asia Resource Minerals PLC, a natural resources group, that he helped create and that is listed on the London Stock Exchange. He was co-chairman of the hedge fund Atticus Capital from 1996 until its dissolution in 2009. He has a wide range of international business interests.

He is the heir to the title of Baron Rothschild, currently held by his father.