Family name origins & meanings
- Irish (chiefly Counties Tipperary and Cork) : shortened form of O’Harty, an Anglicized form of Gaelic Ó hAthartaigh, Ó hÁrtaigh ‘descendant of Athartach or Artach’, variants of the personal name Faghartach, which is probably a derivative of foghartach ‘noisy’.
- Perhaps also English, a habitational name from the Isle of Harty in Kent, named in Old English as ‘stag island’, from heorot ‘hart’, ‘stag’ + ēg ‘island’.