Meaning and name origin
For more information, see also the related boy name Poseidon.
Neptune is not a popular first name for males but a very popular surname or last name for all people (#22774 out of 88799, Top 26%) (2000 U.S. Census).
Displayed below is the baby name popularity of the name Neptune for boys. Neptune has not been ranked in the Top 1000/100 so far. (2014 statistics).