John Perceval, 1st Earl of Egmont, PC, FRS, known as Sir John Perceval, Bt, from 1691 to 1715, as The Lord Perceval from 1715 to 1722 and as The Viscount Perceval from 1722 to 1733, was an Anglo-Irish politician.

Harwich was a parliamentary constituency represented in the House of Commons of the Parliament of the United Kingdom until its abolition for the 2010 general election.