Douglas is a masculine name of Scottish origin, derived from the Scottish Gaelic words "dubh glas," which means "black river" or "dark stream". The name is associated with dark water, resilience, and power. It was originally a Scottish surname, derived from a place in Lanarkshire, and later became a masculine personal name. The surname Douglas was borne by one of the most powerful families in the Kingdom of Scotland, and it is believed that the name gained prominence through figures like Sir James Douglas, known as Black Douglas, a renowned champion of Robert de Bruce (King Robert I of Scotland) and lord of the Douglas family.
