Claim: Euan is a male name that originated from Scotland's Pictish, an extinct language spoken by a Celtic group of people called Picts.
Evidence: Pictish is the extinct language spoken by the Picts, the people of eastern and northern Scotland from the late Iron Age to the Early Middle Ages. The Picts (Old English: Pihti, Scots: Pecht, Scottish Gaelic: Cruithneach) were a group of Celtic-speaking peoples who lived in what is today eastern and northern Scotland during the Late British Iron Age and Early Medieval periods. Euan is a Scottish, male given name, most common throughout the United Kingdom, Canada and Australia, due to the influence of Scots in both nations. It is a derivative of the Pictish name, Vuen (or 'Wen'), which is the Pictish British cognate of Eoghan in Gaelic.