Lydiard Park is a 260-acre (110-hectare) country park at Lydiard Tregoze, which was its former name,[1] about 3 miles (5 km) west of central Swindon, Wiltshire, England, in West Swindon parish, near Junction 16 of the M4 motorway.
The park, which is included on the Historic England Register of Historic Parks and Gardens at Grade II, surrounds the Grade I listed Lydiard House, a mansion built in the 17th and 18th centuries.