Meaning & History
Anglicized form of the Scottish surname Dubhghlas, meaning "dark river" from Gaelic dubh "dark" and glais "water, river". Douglas was originally a place name (for example, a tributary of the River Clyde), which then became a Scottish clan name (belonging to a powerful line of Scottish earls). It has been used as a given name since the 16th century.
DIMINUTIVE: Doug (English)