What is the legal drinking age in Ontario? July 29, 2020 14:21 Updated The legal drinking age in the Province of Ontario, Canada is 19 years of age. Related articles I am purchasing or own a licensed establishment, do I need to be Smart Serve Certified? What is the legal age to Sell, Serve, Deliver or Handle alcohol in Ontario? Do part-time and/or unpaid volunteers serving alcohol need to be Smart Serve Certified? Can a Certified person be fined/charged for over-serving or failing to obtain proper I.D.? Liquor Licence and Control Act, 2019 (LLCA)