Major-General Stephen Cornwallis (23 December 1703 – 12 May 1743) was a career British Army officer and politician who sat in the House of Commons from 1727 to 1743.

At the 1727 British general election, Cornwallis was returned unopposed as Member of Parliament for the family borough of Eye, together with his brother John.

They both voted regularly with the Government, but it is not always possible to identify which brother is referred to in the Parliamentary records.

Stephen Cornwallis may have spoken for the Hessians in 1731, or the army in 1733, but did speak on the Address in 1732 - apparently ‘little to the purpose’.

This article about a Member of the Parliament of Great Britain (1707–1800) representing an English constituency is a stub.