Colonel Henry Darnall (1645 – 17 June 1711) was a planter, military officer and politician in colonial Maryland. Darnall served as the Proprietary Agent in the colony for Lord Baltimore; he also briefly served as Deputy Governor of Maryland. During the Protestant Revolution of 1689, his proprietarial army was defeated by the Protestant army of John Coode, and he was stripped of his numerous colonial offices as a result. Darnall died in 1711, leaving the bulk of his substantial estates to his son, Henry Darnall II.