The name Delta is of Greek origin and means "mouth of a river" or "a change or difference." It is often used as a feminine given name but can also be used as a surname. Delta can symbolize strength, transformation, and new beginnings, as it is the shape formed by the flow of water over time. In mathematics, a delta represents a change or difference between two values, adding a sense of dynamism and movement to the name. Overall, Delta is a unique and powerful name that carries deep symbolism and significance.