Severn Beach is a village on the Severn Estuary in South Gloucestershire, England. The eastern portal of the Severn Tunnel is on the outskirts of the village. The Severn footpath – on the sea wall – is part of the Severn Way that leads from Gloucester, Slimbridge and the Second Severn Crossing. Extensive sea defences have been constructed and this provides a popular walkway along its length. Originally, the Severn Way finished at Severn Beach, but it has been extended to Bristol.

The Severn Estuary is the estuary of the River Severn, flowing into the Bristol Channel between South West England and South Wales. Its very high tidal range, approximately 50 feet (15 m), creates valuable intertidal habitats and has led to the area being at the centre of discussions in the UK regarding renewable tidal energy.