To drive in most European countries, you will need to obtain an International Driving Permit (IDP).
An IDP is a document that translates your Canadian driver's license into multiple languages, making it easier for local authorities to understand.
You can obtain an IDP from your local automobile association or driver licensing authority.
In some cases, you may also need to carry your original Canadian driver's license while driving in Europe.
It's always a good idea to consult with the embassy or consulate of the country you'll be visiting to determine the exact requirements for driving there.