Dunne is a surname of Irish origin, commonly associated with the Gaelic name "O'Dubhain," meaning "descendant of Dubhan." It is prevalent in Ireland and among Irish communities worldwide. The name has various spellings, including Doon and Dun, and is often linked to several notable individuals in history and contemporary society. In addition to being a surname, "Dunne" can refer to various places, such as Dunne County in the United States. It may also relate to cultural references, including works by authors like John Dunne, a prominent poet and metaphysical writer.