Not necessarily. I'm not sure would give you that impression.
Being Canadian, I see alot of Canadian cartoons on TV (I think Teletoon is required to show at least 60% Canadian content or something?) but it's not always made clear whether a show is Canadian or not. I'm too lazy to look, but here are a few of my favourites that are, at the very least, co-productions with Canadian studios.
The Raccoons
Bromwell High
Inspector Gadget
Most of the well-known NFB shorts (the Cat Came Back, Neighbours, the Big Snit, etc)
Rock & Rule
There are a few others, but I don't have time to list them right now.