Culture Minister Helene David says that means those who haven't already done so will have to add a French slogan, explanation or generic term that reflects what they're selling.
David says the amendments to existing regulations will be introduced this fall and hopefully be in place by 2016.
Last week, Premier Philippe Couillard had suggested the government would be moving to tighten Bill 101 — the province's language law — to oblige major retailers to comply.
In April, Quebec's Court of Appeal upheld a lower court decision and ruled the province's language watchdog could not force companies such as Best Buy, Old Navy and Costco to add a French component to their name.
Justice Minister Stephanie Vallee says in a statement released today there won't be an appeal of that decision.
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