Henry Denny Denson (ca 1715 – 3 June 1780) was an Irish-born soldier and political figure in Nova Scotia.
He acquired a large property (in excess of 4000 acres) where he wished to recreate a baronial estate, which he named Mount Denson.
To them he represented the British authority that had broken its promise to allow the new settlers to retain their form of township governance which they had enjoyed in New England.
The British administration in Halifax enforced a centralized government regime which meant a loss of power and self-determination to the Planters.
By the late 1770s in declining health and suffering from extreme bouts of gout, he resigned from the militia and shortly afterwards died at Mount Denson, Falmouth.