Fallodon is a hamlet and former civil parish, now in the parish of Newton-by-the-Sea, in the county of Northumberland, England. It is the territorial designation of Viscount Grey of Fallodon and Baronet Grey of Fallodon. It is pronounced with the emphasis on the first syllable.

Edward Grey, 1st Viscount Grey of Fallodon,, better known as Sir Edward Grey, was a British statesman and Liberal Party politician who was the main force behind British foreign policy in the era of the First World War.