Foscot is a hamlet at the edge of the Cotswolds in the Evenlode valley. It falls within Idbury civil parish, in the West Oxfordshire District, about 5 miles (8.0 km) southeast of Stow-on-the-Wold in neighbouring Gloucestershire, and 1.7 miles (2.7 km) from Kingham. It is in a designated Area of Outstanding Natural Beauty.
The major landowner is Loudham Estates, based at Foxcote Farm.
Foxholes, a woodland nature reserve sloping down to the River Evenlode with year-round colour and wildlife interest, is adjacent to Foscot. It is noted for its spring bluebells and abundant bat and bird life and is managed by the Berkshire, Buckinghamshire and Oxfordshire Wildlife Trust.