Bush is expected to address a crowd of 1,500 at the Telus Convention Centre, remarking on his eight years in the Oval Office.
But not everyone is welcoming with open arms the former most powerful man in the world.
Members of the group Lawyers Against the War labeled Bush a war criminal for his actions regarding the Iraq and Afghanistan conflicts as well as the alleged torture of detainees at Guantanamo Bay and wrote to Canadian government officials opposing his entry into Canada.
Tickets to the invite-only event reportedly sold for $400 each.
Members of the media have been barred from hearing Bush's comments tonight.