1. France: The origin of the French language, with a population of over 67 million French speakers.
2. Canada: French is one of the two official languages, with a population of about 7.5 million French speakers in the province of Quebec.
3. Belgium: French is one of the three official languages alongside Dutch and German, with a population of around 4 million French speakers.
4. Switzerland: French is one of the four official languages, spoken by about 1.8 million people.
5. Haiti: French is the official language, though Creole is widely spoken, with a population of over 10 million French speakers.