Ambrose J. Flack (March 16, 1902 - April 1, 1980) was an American novelist and short story writer best known for writing the short story "The Strangers That Came To Town". From the 1930s to 1969, Flack wrote stories and articles for The Saturday Evening Post, The New Yorker, and other publications. He also authored a teleplay, Make Way for Teddy, and two novels, Family on the Hill (1945) and Room for Mr. Roosevelt (1951).