Ynys Llanddwyn

Ynys Llanddwyn
Tŵr Bach lighthouse with Snowdonia in background
Ynys Llanddwyn
Location within Anglesey
Area0.3 km2 (0.12 sq mi)
Population0 
 Density0/km2 (0/sq mi)
OS grid referenceSH 3884 6288
Community
  • Rhosyr
Principal area
Preserved county
CountryWales
Sovereign stateUnited Kingdom
Post townLlangefni
Postcode districtLL61
Dialling code01248
PoliceNorth Wales
FireNorth Wales
AmbulanceWelsh
UK Parliament
Senedd Cymru – Welsh Parliament

Ynys Llanddwyn (Welsh for 'Llanddwyn Island') is a small tidal island off the west coast of Anglesey (Welsh: Ynys Môn), northwest Wales. The nearest settlement is the village of Newborough.