Province Island (french: Île de la Province) is an island mostly in the Provinces and territories of Canada, Canadian province of Québec, but partly in the U.S. state of Vermont. It is situated in Lake Memphremagog. The island's area is . Although (9%) at its southern point is part of the United States (in the town of Derby, Vermont), the greater part belongs to the municipality of Ogden, Quebec, in Memphrémagog Regional County Municipality, Quebec. At the end of the 18th century a pioneer named Martin Adams and his wife built a house on the island, where they grew flax and vegetables. It is under private ownership; a pheasant hunt is organized annually. The Canada–United States border is marked by a Border vista, five-meter strip cut through the forest. The island has been noted for its shape's similarity to the island of Geography of Taiwan, Taiwan.

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Landforms of Estrie Landforms of Orleans County, Vermont Lake islands of Quebec Lake islands of Vermont International islands Derby, Vermont Magog, Quebec {{Estrie-geo-stub