Dunbar is a Scottish locational surname derived from the town of Dunbar in East Lothian, Scotland. The town's name comes from Gaelic dùn meaning "fort" and barr meaning "summit", describing its position on a rocky promontory jutting into the North Sea. This toponymic origin places it within a common tradition of European surnames taken from place names to identify individuals who came from a particular location. History and Notable Bearers Dunbar as a surname is closely linked to the powerful Dunbar family, who were earls of Dunbar and played a prominent role in Scottish history during the Middle Ages. The name is also shared by the Black Dunbars, a knightly family descended from the earls, as well as other branches spread across Scotland. Among the most famous bearers is John Muir (1838–1914), the Scottish-born American naturalist and conservationist, whose birthplace in Dunbar is now a museum. Muir's influential writings and advocacy helped establish national parks in the United States, including Yosemite. Other notable individuals with this surname include the American poet Paul Laurence Dunbar (1872–1906), who rose from a background of enslavement to become a celebrated writer in both standard English and dialect verse, though his African-American heritage distanced him from the name's original Scottish pedigree. Cultural Significance The historical significance of the Dunbar surname is also reflected in its appearance in heraldry and peerage titles, notably the Earldom of Dunbar—one of the earliest earldoms in Scotland established in the 12th century. The name has since spread to other parts of the English-speaking world, particularly the United States and Canada, through emigration. Meaning: Fort on a summit (from Gaelic dùn and barr) Origin: Scottish, from the town of Dunbar in East Lothian Type: Locational surname Usage: Scotland, then globally via diaspora