Rabbi Joseph Herman Hertz, CH (25 September 1872 – 14 January 1946) was a Jewish Hungarian-born rabbi and Bible scholar. He is most notable for holding the position of Chief Rabbi of the United Kingdom from 1913 until his death in 1946, in a period encompassing both world wars and the Holocaust.
Hertz was born in Rebrín/Rebrény, Kingdom of Hungary (presently part of the village of Zemplínska Široká, Slovak Republic), and emigrated to New York City in 1884. He was educated at New York City College (BA), Columbia University (PhD) and the Jewish Theological Seminary of America (Rabbi, 1894, the Seminary's first graduate). His first ministerial post was at Syracuse, New York.
In 1898, he moved to Transvaal, South Africa, to the Witwatersrand Old Hebrew Congregation in Johannesburg. He stayed there until 1911, despite attempts by President Paul Kruger in 1899 to expel him for his pro-British sympathies and for advocating the removal of religious disabilities of Jews and Catholics in South Africa. He was Professor of Philosophy at Transvaal University College (later known as the University of the Witwatersrand), 1906-8.