What does Costa mean?
Costa /cos-ta/ [2 sylls.] as a name for boys. Costa's name origin is Latin, and the meaning of Costa is "constant, steadfast". Costa is a variant form of Constantine (Latin): from Constantinus. Costa is also a variant of Costas (Greek, Latin).
How popular is Costa?
Costa is an uncommonly occurring given name for males but a very prominent last name for all people (#900 out of 150436, Top 1%). (2000 U.S. Census)
The only popular related form of Costa (outside Top 1000) rated in the Top 1000 is Constantine. Forms like Constantin are uncommon. This boy name reached the apex of its popularity during the years 1920-1929 (usage of 0.358%) and is now significantly less popular, with Constantine becoming less fashionable. Below is a graphed analysis of the usage of Costa and associated names. (2014 Birth Statistics)
A recommended similar baby name is Gosta. Like Costa, this name is not frequently used.