Croatia
- Red Island, island Istrian
France
- Red Island, municipality of the department ofUpper Corsica
Italy
- Red Island, island near the Monte Argentario
- Red Island, hamlet, seaside resort and island in the municipality of Trinità d'Agultu and Vignola in the province of Sassari
- Red Island - island in the municipality of Teulada in the province of Southern Sardinia