Lydiard Park is a 260-acre (110-hectare) country park at Lydiard Tregoze, which was its former name, about 3 miles (5 km) west of central Swindon, Wiltshire, England, in West Swindon parish, near Junction 16 of the M4 motorway.

Lydiard Tregoze is a small village and civil parish on the western edge of Swindon in the county of Wiltshire, in the south-west of England. Its name has in the past been spelt as Liddiard Tregooze.