Lieutenant-General Thomas Wentworth (c. 1693–1747), of Sunninghill, Berkshire, was a British Army officer and politician who sat in the House of Commons from 1743 to 1747.
Wentworth was the third, but second surviving son of Sir Mathew Wentworth, 3rd Baronet, of Bretton, Yorkshire and his wife Elizabeth Osbaldeston, daughter of William Osbaldeston of Hunmanby, Yorkshire.
He was the younger brother of Sir William Wentworth, 4th Baronet.
He became commander of the land troops in the amphibious expedition against Cartagena de Indias following the deaths of the original commander, Lord Cathcart, and his second-in-command, General Spotswood, during the War of Jenkins' Ear.
He and his troops arrived there in 1741 in a fleet led by Rear-Admiral Sir Chaloner Ogle to reinforce Vice-admiral Edward Vernon, but the British forces still failed to take the town and the land forces suffered catastrophic losses of nearly ninety percent over the course of two years' campaigning, mostly from disease.