What does Neptune mean?
For more information, see also the related boy name Poseidon.
Neptune is an uncommonly occurring given name for men but a very prominent surname for both adults and children (#17128 out of 150436, Top 11%). (2000 U.S. Census)
Displayed below is the baby name popularity of Neptune for boys. Neptune has not been listed in the Top 1000 thus far. (2014 Birth Statistics)