Prince Edward Island (PEI or P.E.I.; French: Île-du-Prince-Édouard, Scottish Gaelic: Eilean a' Phrionnsa) is a Canadian province consisting of an island of the same name, as well as other islands. The maritime province is the smallest in the nation in both land area and population (excluding the territories). The island has a few other names: "Garden of the Gulf" referring to the pastoral scenery and lush agricultural lands throughout the province; and Birthplace of Confederation, referring to the Charlottetown Conference in 1864, although PEI did not join the confederation itself until 1873 when it became the seventh Canadian province.

According to the 2009 estimates, Prince Edward Island has 141,000 residents. It is located in a rectangle defined roughly by 46°–47°N, and 62°–64°30′W and at 5,683.91 km2 (2,194.57 sq mi) in size, it is the 104th largest island in the world, and Canada's 23rd largest island. The island was named for Prince Edward, Duke of Kent and Strathearn (1767–1820), the fourth son of King George III and the father of Queen Victoria.

Prince Edward Island is in the Atlantic Time Zone, which is UTC-4 hours.