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).