Russell H. Greenan (born September 17, 1925) is an American author with an established readership in the U.S.A. and Europe, particularly France. His first book It Happened in Boston? was reprinted in 2003 in the U.S.A. as a 20th Century Rediscovery by Modern Library. His fourth book was made into a motion picture titled The Secret Life of Algernon in 1997.