Lydbrook is a civil parish in the Forest of Dean, a local government district in the English county of Gloucestershire and is located in the Wye Valley. It is on the north west edge of the Forest of Dean's present legal boundary proper. It comprises the districts of Lower Lydbrook, Upper Lydbrook, Joys Green and Worrall Hill. It has a mile and a half long high street, reputed to be the longest high street of any village in England.