Does Canada allow dual citizenship?

Yes, Canada generally permits dual citizenship. When you become a Canadian citizen, you are not required to give up citizenship in another country. Similarly, becoming a citizen of another country does not automatically cause you to lose Canadian citizenship. This is a federal policy — the Citizenship Act governs Canadian citizenship and does not require you to renounce foreign citizenship upon naturalization.

However, this is a one-sided analysis of Canadian law. The other country's rules on dual citizenship are entirely separate. Some countries do not permit their citizens to hold dual nationality and may automatically revoke your original citizenship when you naturalize in Canada, or may require you to renounce before naturalizing elsewhere. You must check the laws of your other country of citizenship separately.

If your employer or a foreign government requires that you hold only one citizenship, that is a contractual or legal obligation in your other country and is not governed by Canadian immigration law. Canadian citizenship itself is not automatically lost by acquiring another nationality. If you are uncertain about the implications of naturalization for your existing citizenship, consulting both a Canadian immigration lawyer and a lawyer familiar with your country of origin's laws is advisable.