So the thing is, there really are only Asian pros. (Having said that, here is a list[1] of Western pros). It's only in the last few years that the American Go Association could start certifying[2] Go players as pro. And to the best of my knowledge the European Go Association still does not have this power. Go, amazing game though it is, was relatively unknown outside CJK (China, Japan, Korea) until post-WW2. But globalisation has meant that the rest of the world is finally hearing about this beautiful game. So it migrates to the US via Japan (it's called iGo^ in Japan, which is why it is called Go in the West) and to Europe via Russia and the US. The US is a bit in advance of Europe but not by a huge amount. Arguably Eastern Europe is stronger than Western, as in Chess.
So basically Fan Hui[3] is 2p Chinese rank which makes him pretty solidly 2p. He's the three time European champion which should give you an idea of the strength of players in Europe. The top European players like Alexander Dinerchtein who is roughly the same strength as Fan Hui has an official 3p rank, Korean I believe. So Fan Hui is some ways off the top 9p players in CJK but he was convincingly beaten by AlphaGo so I'd be hesitant to try to infer its rank from this one performance …
[1] http://learnbaduk.com/western-go-professionals.html
[2] http://www.usgo.org/aga-professional-system
[3] http://senseis.xmp.net/?FanHui