God Rest You Merry, Gentlemen (also known as God Rest Ye Merry, Gentlemen) is an English traditional Christmas carol. The melody is in Aeolian mode. It was published by William B. Sandys in 1833, although the author is unknown.
Like so many early Christmas songs, this carol was written as a direct reaction to the music of the fifteenth century church, in Stories Behind the Best-Loved Songs of Christmas. However, in the as-yet earliest known publication of the carol on a circa 1760 broadsheet, it is described as a “new Christmas carol,” suggesting its origin is actually in the mid-18th century. It appeared again among “new carols for Christmas” in another 18th-century source, a chapbook believed to be printed between 1780-1800.