Sir William Corbet, 5th Baronet (1702–1748), of Stoke, Shropshire was a British merchant and politician who sat in the House of Commons from 1728 to 1748.
He joined interest with Henry Herbert, who supported him at Montgomery Boroughs at the 1727 general election.
He voted consistently with the Government and his only reported speech was in 1739 against the repeal of the Test Act.
He transferred to Ludlow, another seat of Lord Powis, at the 1741 general election and was returned unopposed.
He gave up his post as Commissioner of Revenue for Ireland in 1747, as under the Place Act 1742, holding it was incompatible with a seat in Parliament, and he was returned unopposed at the 1747 general election.