Most of the Europeans know who the President of EC (so basically president in France or PM i other countries) is -- everyone hates beloved UvdL ;)
The same goes for comissioners - they mimic same roles as your government has but level up. Some positions may be more prominent (and names known), some less.
Then if you go level _DOWN_ to local authorities (regional, municipal) then people would most likely be clueless who-is-who-and-do-what.
Basically we live in dumbed-down world where people are aware of basically the only-single-strongest-figure (Presindent, PM) because… idiocracy…