Cobham Hall is an English country house in the county of Kent, England. The grade I listed  building is one of the largest and most important houses in Kent,  re-built as an Elizabethan prodigy house by William Brooke, 10th Baron Cobham (1527–1597). The central block was rebuilt 1672–82 by Charles Stewart, 3rd Duke of Richmond, 6th Duke of Lennox(1639–1672).
Today the building houses Cobham Hall School, a private boarding school for girls, established there in 1962, which retains 150 acres (60 ha) of the ancient estate.
The historic dairy, designed by the architect James Wyatt as an eyecatcher, was restored by the Landmark Trust  and opened as a holiday destination in 2019