@Lofenyy @bclindner can't say I know of a Canadian equivalent to a Boston accent, but yeah there are regional accents, both in English and French (if you listen carefully Quebec, Acadian, Ontario and Alberta French have slight differences).
This is the case even within provinces. People talk slightly different in parts of northern Alberta than southern. People in rural Ontario sound different than in Toronto. Search for Letterkenny clips on YouTube. That is rural Ontario speak!