BeaverTails is a Canadian restaurant chain, specializing in pastries known as BeaverTails, that is operated by BeaverTails Canada Inc. Its namesake products are fried dough pastries, individually hand stretched to resemble beaver's tails, with various toppings added on the pastry.

The chain originated in Killaloe, Ontario in 1978 and opened its first permanent store in Ottawa two years later. By 2018, it had 140 franchise and licence locations in six countries: Canada (the Maritimes, Newfoundland and Labrador, Ontario, Manitoba, Alberta, British Columbia and Quebec, where the franchise is called Queues de Castor), the United States (New Hampshire, Michigan, Wisconsin, Tennessee, Arkansas and Utah), the United Arab Emirates, Mexico, France, and Japan.