Greek Meaning: The name Nicholas is a Greek baby name. In Greek the meaning of the name Nicholas is: People's victory. St. Nicholas is the patron saint of children, sailors, and pawnbrokers-Santa Claus is based on this saint.American Meaning: The name Nicholas is an American baby name.In American the meaning of the name Nicholas is: People's victory. St. Nicholas is the patron saint of children, sailors, and pawnbrokers-Santa Claus is based on this saint.reek Meaning: The name Nicholas is a Greek baby name. In Greek the meaning of the name Nicholas is: People's victory. St. Nicholas is the patron saint of children, sailors, and pawnbrokers-Santa Claus is based on this saint. American Meaning: