The O'Hourihane Surname Project
These projects explore the genetic origins of those with the surname O'Hourihane, O'Horgan, and O'Horan and O'Hanrahan. Other forms of these surnames may have gotten confused with each other at various times. It is not clear how O'Hourihane has come about but O'Horgan seems to have been in Co. Cork and Kerry, O'Hanrahan is apparently from Tipperary, and O'Horan was from around Galway. The O'Hourihane DNA Project is hosted on external websites. Your information will be tagged by your kit number and your private information is kept confidential. In addition, there are project pages on World Families.
Other surnames in Project
Arragan, Handrahan, Hanrahan, Haran, Harhan, Harraghan, Harrigan, Haughran, Herrigan, Horan, Horgan, Horohan, Horrigan, Hourahan, Hourican, Hourigan, Hourihan, Howard (Americanized form of the Irish), Organ
Join the O'Hourihane surname project
If you want to join the O'Hourihane project please order your DNA test here.