name O'Haran family name. Variations found include Haren, Horan, Harhan, Haran, O'Horan, O'Hourahan, O'Horahan, O'Haren, O'Harhan, O'Haran, O'Hanran and many more. First found in County Galway , where they held a family seat from ancient times. This distinguished tribe was descended from Eochy Moyvane who was the 124th monarch of Ireland,