Aust is a small village in South Gloucestershire, England, about 10 miles (16 km) north of Bristol and about 28 miles (45 km) south west of Gloucester. It is located on the eastern side of the Severn estuary, close to the eastern end of the Severn Bridge which carries the M48 motorway. The village has a chapel, a church and a public house. There is a large area of farmland on the river bank, which is sometimes flooded due to the high tidal range of the Severn. Aust Cliff, above the Severn, is located about 0.5 miles (0.80 km) from the village. The civil parish of Aust includes the villages of Elberton and Littleton-upon-Severn.
Aust Cliff (grid reference ST565894) is a 5.3 hectare geological Site of Special Scientific Interest adjacent to the Severn Estuary, near the village of Aust, South Gloucestershire, notified in 1954. The Severn Bridge crosses the cliff.
Severn View services, formerly Aust Services is a motorway service station on the M48 motorway near the village of Aust, northwest of Bristol. It is owned by Moto.
Littleton-upon-Severn is a village and civil parish in South Gloucestershire near the mouth of the River Severn and is located to the west of Thornbury. Historically it belonged to the Hundred of Langley and Swinehead. In 1831 it had a population of 179 people.