Grunwald is a surname. Notable people with the surname include:
Al Grunwald, American baseball player
Anatole de Grunwald, Russian-British film producer and screen-writer
Ash Grunwald, Australian blues singer
Glen Grunwald, former GM of the Toronto Raptors
Henry Grunwald (editor), born Heinz Anatol Grünwald (1922–2005), U.S. journalist and diplomat
Lisa Grunwald, American author
Ludwig Grünwald, (1863–1927), German otolaryngologist
Michael Grunwald, American journalist, author of 'The Swamp' and 'The New New Deal'
Wilhelm Grunwald, mathematician
