罗斯福岛（Roosevelt Island）是一个坐落于纽约市东河上的狭长岛屿，介于曼哈顿东侧与皇后区西侧之间。岛的长度约为3公里（1.9英里），范围约等于从曼哈顿的东46街至东85街之间，岛上的最大宽度则为240米（790英尺），总面积为0.59平方公里（150英亩），属于曼哈顿行政区（纽约郡）。根据2000年的人口普查，岛上共有9,520位居民。而根据罗斯福岛营运公司估计，在2007年时岛上约有12,000人居住。美国原住民中的勒纳佩族人称此岛为「Minnehanonck」，新尼德人则称之为「Varkens Eylandt」（猪岛），而在美国殖民时期罗斯福岛被称为「Blackwell's Island」。在1921年至1973年间此岛则以「福利岛」（Welfare Island）之名为人所知。

Roosevelt Island is a narrow island in New York City's East River. It lies between Manhattan Island to its west and the borough of Queens on Long Island to its east, and is part of the borough of Manhattan. Running from the equivalent of East 46th to 85th Streets on Manhattan Island, it is about 2 miles (3.2 km) long, with a maximum width of 800 feet (240 m), and a total area of 147 acres (0.59 km). Together with Mill Rock, Roosevelt Island constitutes Manhattan's Census Tract 238, which has a land area of 0.279 sq mi (0.72 km), and had a population of 9,520 as of the 2000 United States Census. It had a population of 11,661 as of the 2010 United States Census.