Greenwald is a surname. Notable people with the surname include:
Greenwald family, the rabbinic family of Puppa (Hasidic dynasty), originated from Hungary
Alex Greenwald (born 1979), American musician and actor
Andy Greenwald (born 1977), social commentator, specifically about popular music
Bruce Greenwald (born 1946), American economist
Glenn Greenwald (born 1967), attorney, journalist, blogger, author of books, NSA critic
Hank Greenwald (born 1935), former baseball announcer
Herbert Greenwald (1915–1959), real estate developer associated with Mies Van Der Rohe
Jeff Greenwald (born 1954), author, performer, and Executive Director of Ethical Traveler
Louis Greenwald (born 1967), New Jersey, USA politician
Maggie Greenwald (born 1955), American film director and writer
Michael Greenwald, birth name of Michael Kidd (1915–2007), American film and stage choreographer
Moshe Greenwald (1853–1911), Rabbi of Chust, Hungary, and author of Arugas Habosem, a book of responsa
Nora Greenwald (born 1977), also known as Molly Holly, American professional wrestler
Robert Greenwald (born 1945), American film director, film producer, and political activist
