Caribbean:
* Guadeloupe: An overseas region of France.
* Martinique: An overseas region of France.
* Saint Barthélemy: An overseas collectivity of France.
* Saint Martin: Partially French, with the northern part known as Saint-Martin (overseas collectivity of France) and the southern part as Sint Maarten (a constituent country of the Kingdom of the Netherlands).
* Saint Pierre and Miquelon: An overseas collectivity of France.
North America:
* Prince Edward Island (Canada): While English is the official language, a significant percentage of the population speaks French, due to historical ties to Acadia.
Pacific Ocean:
* New Caledonia: An overseas territory of France, with French and Kanak (Melanesian) being the primary languages.
* Wallis and Futuna: An overseas collectivity of France.
* French Polynesia: An overseas country of France, with French and various Polynesian languages spoken.
* Réunion: An overseas region of France.
Indian Ocean:
* Mayotte: An overseas department of France.
* Seychelles: While English is the official language, French is widely spoken due to its colonial past.
Other:
* Mauritius: Though English is the official language, French is widely spoken due to its colonial past.
It's important to note that within these islands, there are often variations in the level of French proficiency and the presence of other languages. This list provides a general overview of islands with significant French-speaking populations.