Giulio (Yoel) Racah (Hebrew: ג'וליו (יואל) רקח; February 9, 1909 – August 28, 1965) was an Italian–Israeli physicist and mathematician.

[4] On his mother's side, Racah's family claimed to trace its ancestry in Italy back to the destruction of the Second Temple.

In the 1948 Arab–Israeli War, Racah served as deputy commander of the Israeli forces defending Mount Scopus.

[7] Racah died at the age of 56, apparently asphyxiated by gas from a faulty heater while visiting Florence.

In 1939, after his move to Palestine, he was appointed Professor of Theoretical Physics at the Hebrew University of Jerusalem, He later became Dean of the Faculty of Sciences and finally Rector and acting president from 1961 to 1962, following Benjamin Mazar and succeeded by Eliahu Eilat.