The Irish, English, Welsh, and Scottish surname Hewitt is derived from from the medieval personal name Huet, a diminutive of Hugh. The personal name Hugh was a popular personal name among the Normans in Ireland and England, partly due to the fame of St. Hugh of Lincoln (1140–1200), who was born in Burgundy and who established the first Carthusian monastery in England. In Ireland the name Hewitt is most frequently found in the Northern Province of Ulster, particularly counties Armagh, Cavan and Down. The name was recorded in the New World as early as 1802 when Robert Hewitt was registered as arriving in New York City. Today there are approximately 30,000 bearers of the name Hewitt in the United States.