List of tallest structures in Canada

Which may be the roof top, antenna, spire, mast or as in the case with smokestacks and bridges, the highest structural point.

There is a separate list for guyed masts since their heights are not fully verifiable and may be inaccurate by several metres; i.e. - several are measured to the height of the tallest transmitter on the mast, but this is not necessarily the tallest point of the tower.

Demolished structures are not ranked but left in their previous position on the list.

There are two separate lists, once again one for free standing structures and one for guyed masts.

This is because of incomplete information regarding the height and number of demolished guyed masts.