Technically, not Canada. Yet. But in what is now Canada.
From the August 28th, 2015 post "Harry Potter and Itinerant Entertainment in Dundas" by Emily Herron from the Dundas Museum:
On May 21st 1858, there appeared in the Dundas True Banner and Wentworth Chronicle, an advertisement. This advertisement would be exciting for readers — especially young readers — today. Why? It announced that Harry Potter was coming to Dundas! And Harry Potter was a magician, known as the original American Wizard! The ad reported that Harry Potter would entertain audiences at the Town Hall the next night. Modern readers would be surprised — and delighted — to read of Harry Potter in a 19th century Dundas newspaper. While this appears to be a coincidence, we want to know more about this performer.
With thanks to Lee Asher for digging up this gem!
FUN FACT: Did you know there was a real-life #magician named Harry Potter, and he performed in #Canada? Crazy, eh? https://t.co/n1xPQ7PEi8 pic.twitter.com/8ELJt9vzvk
— Lee Asher (@LeeAsherMagic) August 5, 2020