马尼图林岛（Manitoulin Island）位于加拿大安大略省境内，面积为2,766 km²，是世界上最大的湖中岛，位于休伦湖上，岛上的马尼图湖为世界上最大的湖中岛中湖。

Manitoulin Island /ˌmænᵻˈtuːlᵻn/ (originally Ekaentouton) is a Canadian lake island in Lake Huron, in the province of Ontario. It is the largest freshwater lake island in the world. In addition to the historic Anishinaabe and European settlement of the island, archeological discoveries at Sheguiandah have demonstrated Paleo-Indian and Archaic cultures dating from 10,000 BC to 2000 BC.