I am of primarily UK descent. Lots of English, some Welsh (I actually bear a Welsh surname), a smidgen of Scots. And then there's a French-Canadian a few generations back on my Mum's side, which of course means there's a bit of French kicking around, too. My brother the family's current genealogist has, I believe, found some traces of Irish, too, but I forget the details.
My son has a more interesting family tree since I married a Chinese woman, so he's Anglo-Canadian on one side and Chinese on the other. And his partner is Pakistani so my grands (should there be some) could have an even more interesting one.