Southwick is a semi-rural village and civil parish 3 miles (4.8 km) south-west of the county town of Trowbridge, Wiltshire, England. It is separated from the south-west fringe of Trowbridge only by the Southwick Country Park, which consists of 380 acres (150 ha) of open fields. The majority of the village lies south of the A361, which runs through the village, linking Trowbridge with Frome.

Trowbridge is the county town of Wiltshire, England; situated on the River Biss in the west of the county, close to the border with Somerset. The town lies 8 miles (13 km) south-east of Bath, 31 miles (50 km) south-west of Swindon and 20 miles (32 km) south-east of Bristol. The parish had a population of 37,169 in 2021.