Flinders Island is an island in the Furneaux Group, Tasmania, Australia.
Flinders Island may also refer to:
In Australia:
- Flinders Island (Queensland)
- Flinders Island (South Australia), in the Investigator Group
- Flinders Island (Western Australia), one of the St Alouarn Islands in Western Australia
- Flinders Islet is one of the Five Islands near Port Kembla.