Doug

Doug is an English short form of Douglas, which derives from the Scottish Gaelic name Dougal or the place name Douglas, itself composed of the Gaelic elements dubh, meaning dark or black, and glas, meaning stream or river. The name was borne by the powerful Scottish House of Douglas, a noble clan prominent in medieval Scottish history. It gained widespread use as an independent given name throughout the twentieth century, particularly in North America and Australia. Related forms include Douglas, Dougie, and the Scottish Gaelic Dubhglas.