Edward Granville Eliot, 3rd Earl of St Germans KP GCB PC DL (29 August 1798 – 7 October 1877), styled Lord Elliot from 1823–45, was a British politician, peer, and diplomat.

Beginning his career as a Tory, he remained loyal to Robert Peel, and served as a Junior Lord of the Treasury from 1827 until 1830.

Out of parliament between 1832 and 1837, he served in Peel's second government first as Chief Secretary for Ireland and later as Postmaster General of the United Kingdom.

He brokered the so-called Lord Eliot Convention in Spain, which aimed to end the indiscriminate executions by firing squad of prisoners on both sides of the First Carlist War.

In that role, he hosted the visit of Queen Victoria and the Prince Consort to the 1853 Great Exhibition held in Dublin.