Lydiard Millicent is a village and civil parish in Wiltshire, England, about 3+1⁄2 miles (6 km) west of the centre of Swindon. The parish contains the hamlets of Lydiard Green, Lydiard Plain, Greatfield and Green Hill; in the northeast the parish extends to Common Platt, which is now contiguous with the Peatmoor area of Swindon.

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.