Douglas is a Scottish surname with origins in Gaelic language. It means “dark water” or “black stream”. The name is associated with many notable figures in history, including the influential medieval nobleman James Douglas, who fought alongside Robert the Bruce. In modern times, the surname is still popular and has been adopted by many famous people in various fields, such as actor Michael Douglas and Olympic gold medalist Gabby Douglas. The Douglas family crest features a green salamander, which symbolizes courage and fire resistance.