- Prince Edward Island (PEI; French: Île-du-Prince-Édouard; Scottish Gaelic: Eilean a’ Phrionnsa; colloquially known as The Island) is one of the thirteen provinces and territories of Canada. While it is the smallest province in terms of land area and population, it is the most densely populated. The island has several nicknames: “Garden of the Gulf”, “Birthplace of Confederation” and “Cradle of Confederation”. Its capital and largest city is Charlottetown. It is one of the three Maritime provinces and one of the four Atlantic provinces.