"Blessed Be That Maid Mary", also known as "Blessed be that Maid Marie" or "Blyssid be that mayde Mary" is a traditional English carol that possibly dates to the 15th century set to the tune "Staines Morris". It was printed in Chappell's Popular Music of the Olden Time. The lyrics are from Woodward and Wood, Cowley Carol Book, 1901. It was also printed in Hutchins' Carols Old and Carols New (1916) and The New Oxford Book of Carols (#106).