Earl of St Germans, in the County of Cornwall, is a title in the Peerage of the United Kingdom that is held by the Eliot family. The title takes its name from the village of St Germans, Cornwall, and the family seat is Port Eliot. The earldom has the subsidiary title of Baron Eliot.

The Eliot family is a British aristocratic family whose members include earls, barons, counts, knights, governors, peers, and Members of Parliament. The main factions are the Earls of St Germans and the Eliot Military Family, which encompasses the Count Eliots.