Horan, ó hOdhráin
A sept of north Connacht, from descendant of Odhrán diminutive of odhar perhaps meaning ‘dark, sallow, grey-brown’. In 1890 Horan was principally found in Mayo, Kerry, Tipperary and Roscommon, and the estimated number of bearers was 2,820. In the United States it is the 4,072nd most numerous surname with an estimated 8,250 bearers. In the United States it is the 4,072nd most numerous surname with an estimated 8,250 bearers.