Lydney is a small town and civil parish in the English county of Gloucestershire. It is located on the West Bank of the River Severn, close to the Forest of Dean. The town lies on the A48 road, next to the Lydney Park gardens with its Roman temple in honour of Nodens.
The Severn Railway Bridge crossed just north of Lydney from Purton to Sharpness on the eastern bank. Built in the 1870s, it was damaged beyond repair by a pair of oil tanker barges in 1960. The barges hit Pier 17 bringing down two bowstring girders. There have been several plans to renew the link, most recently in the late 1990s as a millennium project.
Lydney railway station, which serves the town, is located on the Gloucester to Newport Line, with connections from the town centre by the Dean Forest Railway. Lydney Canal was once an important harbour for shipping timber, coal and iron from the Forest of Dean. It is now a harbour for pleasure craft.