"Away in a Manger" is a Christmas carol first published in the late nineteenth century and used widely throughout the English-speaking world. In Britain, it is one of the most popular carols; a 1996 Gallup Poll ranked it joint second. Although it was long claimed to be the work of German religious reformer Martin Luther, the carol is now thought to be wholly American in origin. The two most common musical settings are by William J. Kirkpatrick (1895) and James Ramsey Murray (1887).

A Christmas carol is a carol on the theme of Christmas, traditionally sung at Christmas itself or during the surrounding Christmas holiday season. The term noel has sometimes been used, especially for carols of French origin. Christmas carols may be regarded as a subset of the broader category of Christmas music.