Prohibition in Canada was a ban on alcoholic beverages that arose in various stages, from local municipal bans in the late 19th century, to provincial bans in the early 20th century, and national prohibition from 1918 to 1920. The relatively large and powerful beer and alcohol manufacturing sector, and the huge working class that purchased their products, failed to convince any of the governments to reverse their stance on prohibition. Most provinces repealed their bans in the 1920s, though alcohol was illegal in Prince Edward Island from 1901 to 1948. By comparison, Ontario's temperance act was in effect from 1916 to 1927.

An alcoholic beverage is a drink that contains ethanol, a type of alcohol and is produced by fermentation of grains, fruits, or other sources of sugar. The consumption of alcoholic drinks, often referred to as "drinking", plays an important social role in many cultures. Alcoholic drinks are typically divided into three classes—beers, wines, and spirits—and typically their alcohol content is between 3% and 50%.