| Grosvenor Island | |
| Pushpin Map: | Canada Nunavut#Canada |
| Native Name Link: | Inuktitut |
| Location: | Arctic Ocean |
| Coordinates: | 77.0833°N -155°W |
| Archipelago: | Findlay Group Queen Elizabeth Islands Arctic Archipelago |
| Country: | Canada |
| Country Admin Divisions Title: | Territory |
| Country Admin Divisions: | Nunavut |
| Country Admin Divisions Title 1: | Region |
| Country Admin Divisions 1: | Qikiqtaaluk |
| Population: | Uninhabited |
Grosvenor Island is one of the Canadian arctic islands in Nunavut, Canada. It lies in the Arctic Ocean, south-east of Edmund Walker Island and north-west of Patterson Island. It is part of the Findlay Group.