The Unsinkable Molly Brown is a 1960 musical with music and lyrics by Meredith Willson and book by Richard Morris. The plot is a fictionalized account of the life of Margaret Brown, who survived the sinking of the RMS Titanic, and her wealthy miner-husband. A musical film version, also titled The Unsinkable Molly Brown, with screenplay by Helen Deutsch, was released in 1964.

Robert Reiniger Meredith Willson was an American flautist, composer, conductor, musical arranger, bandleader, playwright, and writer. He is perhaps best known for writing the book, music, and lyrics for the 1957 hit Broadway musical The Music Man and "It's Beginning to Look a Lot Like Christmas" (1951). Willson wrote three other musicals, two of which appeared on Broadway, and composed symphonies and popular songs. He was twice nominated for Academy Awards for film scores.