| Name | Siau Island |
| Geology | Volcanic |
| Archipelago | Sangihe Islands |
| Area (m²) | 125,000,000 |
| Latitude (°) | 2.7500000000 |
| Waterbody | Celebes sea |
| Length (m) | 20,000 |
| Longitude (°) | 125.4000015259 |
| Population (people) | 38,820 |
| Country | Indonesia |
| countries - island1 Relations |