VAILA, an island, in the parish of Walls-and-Sandness, county of Shetland; containing 29 inhabitants. It lies south-west of the main land of the parish, at the entrance of a small sound, or more properly a voe, to which it gives name; and is about a mile in length and half a mile in breadth. In the centre of it is Melby House, the residence of the Scott family, principal heritors of the parish.