Earl of Clare was a title of British nobility created three times: once each in the peerages of England, Great Britain and Ireland.
The title derives from Clare, Suffolk, where a prominent Anglo-Norman family was seated since the Norman Conquest, and from which their English surname sprang from possession of the Honour of Clare. The Norman family who took the name 'de Clare' became associated with the peerage as they held, at differing times, three earldoms (Gloucester, Pembroke and Hertford).