McCallion
McCallion is a surname of Irish origin, derived from the Gaelic name *Mac an Chollaí*, meaning "son of the hazel tree." The name reflects the historical practice of patronymics in Ireland, where surnames were often formed by adding "Mac" (meaning "son of") to a given name or place name. Over time, variations such as McCollum, McCollough, and McCallum emerged due to regional dialects and spelling differences.
The surname is most commonly associated with Irish diaspora communities, particularly in North America, where Irish
McCallion also appears in popular culture, notably as the surname of a fictional character in the 2010
While not as widespread as some other Irish surnames, McCallion remains a distinct identifier for individuals