Sir Henry Gates (c. 1515 – 7 April 1589), of Seamer, Yorkshire; Kilburn, Middlesex; Kew, Surrey and Havering, Essex, was an English courtier and politician.
He became a Member (MP) of the Parliament of England for New Shoreham in 1545, Bridport in 1547 and Bramber in 1549.
He acquired a number of public offices such as Comptroller of Petty Customs (1551–53) and Receiver-General of the Duchy of Cornwall (1552–53).
With his brother he supported the bid in 1553 to put Lady Jane Grey on the English throne and the two were arrested, sent to the tower and found guilty of treason.
He went to Scotland with William Drury and met Regent Moray in the Great Hall of Stirling Castle on 19 January 1570, and they had a discussion in his bedchamber after dinner.