Windsor \wi-nd-sor, win-dsor\ as a boy's name is of Old English origin, and the meaning of Windsor is "riverbank with a winch". Place name. Name of the town and castle in England, and also the surname of the British royal family. It was originally Wettin before 1917, but during World War I, a staunch English name was adopted as it seemed more patriotic against Germany. Also the name of a style of tying a necktie, invented by the Duke of Windsor, who was a great dandy.