| Yeina Island | |
| Native Name Lang: | png |
| Sobriquet: | Piron Island |
| Pushpin Map: | Papua New Guinea |
| Coordinates: | -11.33°N 153.4417°W[1] |
| Location: | Oceania |
| Archipelago: | Louisiade Archipelago |
| Waterbody: | Solomon Sea |
| Total Islands: | 1 |
| Area Km2: | 16 |
| Length Km: | 9.5 |
| Width Km: | 3.2 |
| Coastline M: | --> |
| Elevation M: | 80 |
| Highest Mount: | Mount Yeina |
| 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: | Yeina Group |
| Country Largest City: | Buwo |
| Country Largest City Population: | ~250 |
| Population: | 437 |
| Population As Of: | 2014 |
| Density Km2: | 27.3 |
| Ethnic Groups: | Papauans, Austronesians, Melanesians. |
| Timezone1: | AEST |
| Utc Offset1: | +10 |
| Iso Code Type: | ISO code |
| Iso Code: | PG-MBA |
Yeina Island is an island of volcanic origin in the Southeast Louisiade Archipelago in Milne Bay Province, Papua New Guinea.
The island has an area of 16 km2. The island is hilly, rising to 80 m at Mt. Yeina.The island is 10 km north of Vanatinai, and separated from it with the Yuma Channel. It is also 10 km east of Pana Tinani.The island is circled by a coral reef. The interior of the island is dominated by a chain of low, grassy hill, surrounded by a coastal forest, with many mangrove areas.Between Yeina and Vanatinai is the Marx Reef.
The island was discovered in the late 18th century.
At the census of population in 2014, the island had 437 inhabitants, spread across 4 villages. The main town is Buwo, on the West coast.Former town of Kabagi-bagi was damaged by hurricanes recently. Nearly entire island population have moved to the village of Buwo.