1. France
2. Canada (Quebec and other provinces)
3. Belgium
4. Switzerland
5. Luxembourg
6. Monaco
7. Haiti
8. Senegal
9. Ivory Coast
10. Cameroon
11. Burkina Faso
12. Mali
13. Niger
14. Chad
15. Central African Republic
16. Democratic Republic of the Congo
17. Republic of the Congo
18. Gabon
19. Madagascar
20. Djibouti
It's important to note that this list only includes countries where French is an official language. There are many other countries where French is spoken by a significant portion of the population, but it is not officially recognized.