Mouse Island may refer to:
- Mouse Island, Bermuda, an island of Bermuda
- Mouse Island, Ohio, a private island in Lake Erie in Ohio, United States
- Mausinsel ("Mouse island") an island in the Wörthsee lake in Bavaria, Germany
- Mouse Island, a fictional island in the Geronimo Stilton book series.
See also
edit- Island mouse, a species of rodent in the family Nesomyidae found only in Madagascar