Meaning A boy's name of Scottish origin, it means "Diminutive of Douglas: From the Gaelic 'dubhglas' meaning dark water, dark stream, or from the dark river." Origin of Doug Scottish +-100%Zoom level changed to 1 Popular Middle Names Wane Pronunciation 🔊 Listen Doug Similar Names Doggie Dougie Douglass Doogie Douglas Wynford Cuddy Cuddle Donald Doughlas Year by Year Popularity of Doug