From the name of the fourth letter in the Greek alphabet, Δ. It is also the name for an island formed at the mouth of a river. Delta originates in Greek language and is taken from the word for the fourth letter of the Greek alphabet, very often used as a mathematical symbol. It is also an expression for the mouth of a river, as well as the name of U.S. airlines. It has never become overly popular as a feminine given name.
Delta Related Names Variants: Dellta, Delltah, Deltah