Tilshead (/ˈtɪlshɛd/) is a village and civil parish in the county of Wiltshire in Southern England, about 9 miles (14 km) northwest of the town of Amesbury.

It is close to the geographical centre of Salisbury Plain, on the A360 road approximately midway between the villages of Shrewton and West Lavington and is near the source of the River Till.

[5][7] The tithing of South Tilshead was a manor of Romsey Abbey until the dissolution of the monasteries, and came to be a detached part of the hundred of Whorwellsdown.

The church is built in flint and limestone, partly chequered, and has a low central tower with a small conical roof; it was recorded as Grade I listed in 1958.

The dedication to St Thomas is first recorded in 1763;[5] it may come from the link with Ivychurch, as it is thought that the saint stayed at the priory during the Council of Clarendon in 1164.

[24] The whole length of the River Till (which is a winterbourne, dry for much of the year) is a biological Site of Special Scientific Interest.

Westdown Camp, 0.4 miles (0.64 km) to the east of the village, is an accommodation centre for the Salisbury Plain Training Area.