| Iyen Island | |
| Native Name Lang: | png |
| Sobriquet: | Ian Island |
| Pushpin Map: | Papua New Guinea |
| Coordinates: | -11.5°N 179°W[1] |
| Location: | Oceania |
| Archipelago: | Louisiade Archipelago |
| Waterbody: | Solomon Sea |
| Total Islands: | 1 |
| Area Km2: | 0.86 |
| Coastline M: | --> |
| Elevation M: | 54 |
| Highest Mount: | Mount Iyen |
| Country: | Papua New Guinea |
| Country Admin Divisions Title: | Province |
| Country Admin Divisions Title 1: | District |
| Country Admin Divisions 1: | Samarai-Murua District |
| Country Admin Divisions Title 2: | LLG[2] |
| Country Admin Divisions 2: | Yaleyamba Rural Local Level Government Area |
| Country Admin Divisions Title 3: | Island Group |
| Country Admin Divisions 3: | Vanatinai Islands |
| Country Largest City: | Iyen |
| Country Largest City Population: | ~95 |
| Population: | 102 |
| Population As Of: | 2014 |
| Density Km2: | 119 |
| Ethnic Groups: | Papauans, Austronesians, Melanesians. |
| Timezone1: | AEST |
| Utc Offset1: | +10 |
| Iso Code Type: | ISO code |
| Iso Code: | PG-MBA |
Iyen Island is in the Louisiade Archipelago, within Milne Bay Province of southeastern Papua New Guinea.
It is jurisdictionally in the Yaleyamba Rural Local Level Government Area.