Check first
At the border
🛂 ENTERINGCanada 
Within your duty-free allowance.
- Adults may bring a set amount duty-free (often ~200 cigarettes).
- Above that you pay duty; some countries require a health-warning-compliant pack.
Helpful sources
🌐CBSA — I Declare (returning to Canada)Official guidance↗To be 100% sure, we always recommend confirming with the official channels.
Import rules change often and vary by nationality. Confirm with the Canada customs authority or your embassy before you travel.