Billy Blind, Billy Blin, Billy Blynde, Billie Blin, or Belly Blin is an English and Lowland Scottish household spirit, much like a brownie. He appears, however, only in ballads, where it frequently advises the characters. It is probable that the character of Billy Blind is a folk memory of the god Woden or Odin from Germanic mythology, in his "more playful aspect" and the character seems to have been the same character as that of Blind Harie, the "blind man of the game" in Scotland.
In Child Ballad no 6, Willie's Lady, Willie's wife has been in labour and can not deliver because Willie's mother, a rank witch, is preventing her. Billy Blind advises Willie to make a wax figure of a baby and invite his mother to the christening. In her rage, the mother demands to know how all her magic was undone, listing all the things she's done, and Willie is able to undo them.
In Child Ballad no 53C, Young Bekie, he advises Burd Isobel that Young Bekie is about to marry another bride, and gives her assistance in the magical journey to reach him in time.
In Child Ballad no 110, The Knight and the Shepherd's Daughter, he appears in many of the variants to reveal the true births of the marrying couple: much higher than was apparent.
- Katharine Briggs, An Encyclopedia of Fairies, Hobgoblins, Brownies, Bogies, and Other Supernatural Creatures, "Billy Blind", p 23. ISBN 0-394-73467-X
- "The Review of English studies, Volumes 7-8", Clarendon Press, 1956.
- "Mythical bards and The life of William Wallace", William Henry Schofield, Harvard University Press, 1920
- "Scottish fairy belief: a history",Lizanne Henderson, Edward J. Cowan, Dundurn Press Ltd., 2001, ISBN 1-86232-190-6, ISBN 978-1-86232-190-8, p.49
- "The English and Scottish Popular Ballads", Francis James Child, Courier Dover Publications, 2003, ISBN 0-486-43145-2, ISBN 978-0-486-43145-1, p.67
- "In Search of Lost Gods: A Guide To British Folklore" Ralph Whitlock, Phaidon, 1979, p. 160
- "Living With Ballads" Willa Muir, Oxford University Press, 1965
- "The Critic, Volume 21" Carolyn Shipman, Charles Waddell Chesnutt, The Critic Printing and Pub. Co., 1894, page 435
- "The American-Scandinavian review, Volume 8" Henry Goddard Leach, American-Scandinavian Foundation., 1920
- "Games and songs of American children, collected and compared" W.W. Newell, 1883
- Francis James Child, English and Scottish Popular Ballads, "Gil Brenton"
- Francis James Child, English and Scottish Popular Ballads, "Willie's Lady"
- Francis James Child, English and Scottish Popular Ballads, "Young Beichan"
- Francis James Child, English and Scottish Popular Ballads, "The Knight and the Shepherd’s Daughter"
- Young Bekie (Third version)