Henry Withers (c. 1651 – 1729) was a British army officer and politician, who began his career in 1674 during the Franco-Dutch War and reached the rank of Lieutenant General in 1707. A close associate of the Duke of Marlborough during the War of the Spanish Succession, he served in a number of actions, including the 1704 battles of Schellenberg, Blenheim, and Malplaquet in 1709.