[Via Euronews: Fact check: Can Canada apply to join the EU?]
Short answer: no, because it isn't located in Europe.
https://www.euronews.com/2025/03/20/fact-check-can-canada-apply-to-join-the-eu
euronews · Fact check: Can Canada join the EU?Questions have been raised over whether Canada could hypothetically apply to join the European Union amid its crumbling relations with the US, but experts say its geographical and cultural distance to the continent poses a problem. #EuroVerify
@s1m0n4 …but we share a land border… 
@WTL Morocco has a Spanish enclave in its territory, yet it hasn't passed the requirements either.
I suggest Canadians to start with the #Eurovision contest and beat the Australians, then we'll see! 
@woollypigs @WTL I dream of the day #kpop will enter the #eurovision