What does Costa mean?
Costa \c(o)-sta, cos-ta\ as a name for boys. Costa's name origins are Latin and Greek, and the meaning of Costa is "constant, steadfast". Costa is a variant of Constantine (Latin): from Constantinus. Costa is also a variant of Costas (Greek, Latin).
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 (#unlisted) rated in the Top 1000 is Constantine. These boy names reached the apex of their popularity during the years 1920-1929 (usage of 0.358%) and are 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)