Ó Cuanaigh is a surname of Irish origin, often associated with the Gaelic language. It is derived from the word "cuan," meaning "harbor" or "bay," indicating a connection to coastal areas or water bodies. The name is primarily found in Ireland and is linked to various historical families and clans. The Ó Cuanaigh family is part of the broader Irish genealogical landscape, with roots tracing back to ancient times. Like many Irish surnames, it reflects the rich cultural heritage and history of the Gaelic people, showcasing the significance of place and nature in naming conventions.