Gave the world:

Mary Pickford
Raymond Burr
Jay Silverheels
Don Harron (Charlie Farquharson)
Gordie Tapp
Buffy Ste Marie
The Friendly Giant
Oscar Peterson
Marshall McLuhan ("...whatcha doin'?")
(am I showing my age?)
Paul Gross
Zambonis
back bacon san'wiches
butter tarts
A lot of lumberjack songs
Gave the Americans something to write their National Anthem about

My name is Siân and I'm a Canadian ...