Ammerdown House in Kilmersdon, Somerset, England, was built in 1788. It has been designated as Grade I listed building.

Kilmersdon is a village and civil parish on the north eastern slopes of the Mendip Hills in Somerset between the towns of Radstock and Frome. It is located on the B3139 between Wells and Trowbridge in Wiltshire. The settlement is recorded in William I's Domesday book and dates back at least 1,000 years; though the core of the village dates from the mid nineteenth century. The parish includes the hamlets of Charlton, South View and Green Parlour.