What does Costa mean?
Costa is an uncommonly occurring given name for males but a very prominent last name for all people (#1076 out of 88799, Top 1%). (2000 U.S. Census)
Below is a graphed analysis of the usage of Costa and associated names. The only popular related form of Costa (#unlisted) is Constantine. This boy name reached the apex of its popularity during 1920-1929 and is now significantly less popular, with the form Constantine becoming less fashionable. (Top 1000 Baby Names Records, 2014)