Edward Montagu, 1st Earl of Sandwich, 27 July 1625 to 28 May 1672, was an English military officer, politician and diplomat from Barnwell, Northamptonshire. During the First English Civil War, he served with the Parliamentarian army, and was an Member of Parliament at various times between 1645 and 1660. Under The Protectorate, he was also a member of the English Council of State and General at sea.

Earl of Sandwich is a noble title in the Peerage of England, held since its creation by the House of Montagu. It is nominally associated with Sandwich, Kent. It was created in 1660 for the prominent naval commander Admiral Sir Edward Montagu. He was made Baron Montagu of St Neots, of St Neots in the County of Huntingdon, and Viscount Hinchingbrooke, at the same time, also in the Peerage of England. The viscountcy is used as the courtesy title by the heir apparent to the earldom. A member of the prominent Montagu family, Lord Sandwich was the son of Sir Sidney Montagu, youngest brother of Henry Montagu, 1st Earl of Manchester, and Edward Montagu, 1st Baron Montagu of Boughton.