Eurostat
  
The group of number-happy nerds charged with gathering and reporting economic data about Europe.
In the U.S., government data about the economy is gathered by several different organizations. The Labor Department's Bureau of Labor Statistics, the Department of Commerce's Bureau of Economic Analysis, and the Federal Reserve are some of the big producers of stats.
For the EU, the figure-gathering has been centralized at Eurostat. So if you care about things like GDP, inflation, or employment in the countries making up the European Union, Eurostat is the place for you.