I tell people that I am a mutt, as it bores them when I rattle off all of the places that my family comes from. I like genealogy... But since you asked

My maternal grandmother's side of the family would be Scottish royalty turned Irish peasant (there is a ruined Maxwell castle still somewhat standing after the Johnstones ran them down and out of Scotland). There is also some Dutch in there.
My maternal grandfather's side is not as easy to trace back.They would be Irish, English, African... they had been in the states for awhile and were Kentucky feuding hill folk which did not mesh well with the African bit as they tried to hide it and 'whiten up' back then.
My paternal grandmother's side is mostly English and Scottish with some from (my grandmother believed to be) Holland.
My paternal grandfather's side would be the most diverse as two of his ancestors were sailors and boat builders who traveled about and consequently picked up women from all around. On that side I have Scottish, Irish, French, Shawnee, Brazilian... Some came from Germany, Austria, England, Holland, Switzerland...
So yeah, I am a mutt.
Its pretty boring on my side though - Irish/English on one side, German/Polish/Slovak on another.