The Child Ballads are 305 traditional ballads from England and Scotland, and their American variants, anthologized by Francis James Child during the second half of the 19th century. Their lyrics and Child's studies of them were published as the 2,500-page book The English and Scottish Popular Ballads. The tunes of most of the ballads were collected and published by Bertrand Harris Bronson in and around the 1960s.
Child's collection was not the first of its kind; there had been many less scholarly collections of English and Scottish ballads, particularly from Bishop Thomas Percy's Reliques of Ancient English Poetry (1765) onwards. There were also "comprehensive" ballad collections from other countries. Child modelled his work on Svend Grundtvig's Danmarks gamle Folkeviser, classifying and numbering the ballads and noting different versions, which were placed side by side to aid comparison. As a result, one Child number may cover several ballads, which Child considered variants of the same story, although they may differ in many ways (as in "James Hatley"). Conversely, ballads classified separately may contain turns of phrase, and even entire verses, that are identical.
The ballads vary in age; for instance, the manuscript of "Judas" dates to the thirteenth century and a version of "A Gest of Robyn Hode" was printed in the late fifteenth or early sixteenth century. The majority of the ballads, however, date to the seventeenth and eighteenth centuries. Although some probably have very ancient influences, only a handful can be definitively traced to before 1600. Moreover, few of the tunes collected are as old as the words. Nevertheless, Child's collection was far more comprehensive than any previous collection of ballads in English.
Many of Child's ballads were obtained from printed broadsides, but he generally distinguished the "traditional" ballads that interested him from later broadside ballads. As Child died before writing a commentary on his work, it is uncertain exactly how and why he selected some ballads and discounted others.