EDIT: Wait, what exactly do you call it out there in Canada, Black_Tiger? Pop?
I can't speak for all Canadians, but here in Alberta, it's definitely Pop. And Canadians I met from other places (BC, Prairie, as well as Maritime places) also seem to refer to it as Pop. So... I guess that means most people say Pop in Canada.
Though I'm a "Soda" man myself.
Still, I think some non-north Americans call 'em fizzy drinks. I recall a Brit and a Kiwi who said that. Oh, and they also call 7-up/sprite type soft drinks "lemonade".