Mandelbaum is a surname. Notable people with the surname include:
Allen Mandelbaum (born 1926), American professor of Italian literature, poet, and translator
Fredericka Mandelbaum (1818–1894), New York entrepreneur and criminal fence operator
Frederic Morton (born Fritz Mandelbaum) (born 1924), Austrian writer
Henryk Mandelbaum (1922–2008), holocaust survivor
Jacques Mandelbaum (born 1958), French journalist and film critic
Joel Mandelbaum (born 1932), microtonal musician
Ken Mandelbaum, American columnist, critic, and author
Kurt Mandelbaum, development economist (1905-1995)
Michael Mandelbaum, professor of American foreign policy
Samuel Mandelbaum (1884–1946), American lawyer and politician
