It's spelled canadien in French. But it's spelled Canadian in English.
People or things from Canada are "Canadian". (The French / Canadian spelling is Canadien.)
"Canadian" in French is "Canadien" for a man and "Canadienne" for a woman.
êtes vous canadien / canadienne
Je suis Canadien
canadien
Canadien
cheval canadien
Je suis canadien
Bouclier canadien
Yes, He is French-Canadian.
Jim Carrey is Canadian