Treanor

Treanor is a surname of Irish origin, commonly found in County Cavan and surrounding areas. It is an anglicized form of the Gaelic Ó Treanair, meaning "descendant of Treanair." The personal name Treanair itself is thought to derive from the Irish word "trean," meaning strong or powerful.

Historically, the Treanor family has been associated with the O'Reilly clan, a prominent Gaelic Irish dynasty in Ulster. The name appears in various historical records, including land deeds and census data, dating back several centuries. Like many Irish surnames, emigration led to the spread of the Treanor name to other countries, particularly the United States, Canada, and Australia.

While the surname is most concentrated in Ireland, individuals with the Treanor surname can be found globally. There are no widely recognized public figures or historical events solely defined by the Treanor name, but it represents a lineage with deep roots in Irish history and culture. Genealogists and historical researchers may encounter the Treanor surname when studying the settlement patterns and family histories of County Cavan and the wider Irish diaspora. The name's etymology reflects a traditional Gaelic emphasis on strength and resilience.