The Rosary is a novel by Florence L. Barclay. It was first published in 1909 by G.P. Putnam's Sons and was a bestselling novel for many years running, reaching the number one spot in 1910. A recent edition published in 2002 has a new introduction by Sharon Rich and comments by Jeanette MacDonald and Nelson Eddy dating from 1948, when they planned to co-star in a film version at MGM. The film was never made.