William Novak (born 1948) is a Canadian–American author who has co-written or ghostwritten numerous celebrity memoirs for people including Lee Iacocca, Nancy Reagan, and Magic Johnson. He is also the editor, with Moshe Waldoks, of The Big Book of Jewish Humor. He has also written several "private" books, which he described in a 2015 essay for The New York Times.He is the father of actor and writer B. J. Novak and composer Jesse Novak. He is Jewish.