Therefore, the legal gambling age in Ontario is different from the one in Alberta. Since gambling laws in Canada are regulated by provincial and territorial governments, rather than on a federal level, the age limit is not the same across the country. The legal gambling age varies between 18 and 19. What Is the Legal Gambling Age in Canada? We will also share some casino tips and tricks that first-time players can use once they are old enough to start playing. You can find out more about the gambling age limit across provinces and territories in the article below. The age can vary, depending on your province or territory and the type of activity you are engaging in. The legal gambling age in Canada (in most parts) is 19.