Origen: Irlandés. The Irish name Harty was originally written in a Gaelic form as O hAirt, which connotes a descendant of Art. First found in county Meath, where they were of the southern Ui Neill. Before the Anglo-Norman invasion of the 12th century, their chiefs were known as the lords of Teffia. The name Harty in Ireland is derived from the native Gaelic O'hAthartaigh Sept derived from a Gaelic word meaning 'noisy'.

Variantes: Harty, Hart, O'Hart, Harte, MacArt, McArt, MacCart, McCart y otros.