Leon Black is the name of several people:
Surname Leon Black (basketball) (1932-2021), American college basketball coach Leon Black (born 1951), American private equity investor with business ties to Jeffrey Epstein, chairman of the Museum of Modern Art from 2018 to 2021
In fiction Leon Black (Curb Your Enthusiasm), a Curb Your Enthusiasm character.
See also Leon Schwartz (1901-1990), a klezmer and classical music violinist.